{"id":545,"date":"2019-02-22T21:32:56","date_gmt":"2019-02-22T21:32:56","guid":{"rendered":"https:\/\/hangarmma.com.br\/blog\/?p=545"},"modified":"2025-08-22T15:31:20","modified_gmt":"2025-08-22T18:31:20","slug":"parafusos-e-fixadores-de-aeronaves","status":"publish","type":"post","link":"https:\/\/hangarmma.com.br\/blog\/parafusos-e-fixadores-de-aeronaves\/","title":{"rendered":"Quais as caracter\u00edsticas de Parafusos e fixadores de aeronaves?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Na <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_9f121fb8c1078cb5a639d70d35f8e941\" data-link=\"https:\/\/hangarmma.com.br\/blog\/maintenance\/\" href=\"https:\/\/hangarmma.com.br\/blog\/maintenance\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">manuten&#xE7;&#xE3;o<\/a> de aeronaves, mesmo um pequeno desvio&#xA0; do projeto original, ou a simples substitui&#xE7;&#xE3;o de materiais inferiores, pode resultar na perda de vidas e ou equipamentos, isso inclui <strong>parasusos e fixadores de aeronaves<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Isso me faz lembrar o acidente da <strong>British Airways 5390<\/strong> em 1990 causado pela instala&#xE7;&#xE3;o errada dos fixadores do para-brisas da aeronave. <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"490\" height=\"302\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-2.png\" alt=\"\" class=\"wp-image-546\" style=\"width:578px;height:356px\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-2.png 490w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-2-300x185.png 300w\" sizes=\"auto, (max-width: 490px) 100vw, 490px\"\/><figcaption class=\"wp-element-caption\"> <br><strong>Acidente da British Airways <\/strong><br><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Para garantir a seguran&#xE7;a os&#xA0; itens&#xA0; s&#xE3;o&#xA0; identificados&#xA0; por&#xA0; n&#xFA;meros&#xA0; de&#xA0; especifica&#xE7;&#xE3;o ou nome do fabricante que devem ser seguidos rigorosamente durante a <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_9f121fb8c1078cb5a639d70d35f8e941\" data-link=\"https:\/\/hangarmma.com.br\/blog\/maintenance\/\" href=\"https:\/\/hangarmma.com.br\/blog\/maintenance\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">manuten&#xE7;&#xE3;o<\/a>, em sua instala&#xE7;&#xE3;o, desde um simples rebite at&#xE9; um componente como um <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_bf3b31a1d9aa822b34519c57bc9f2af8\" data-link=\"https:\/\/hangarmma.com.br\/blog\/radar-2\/\" href=\"https:\/\/hangarmma.com.br\/blog\/radar-2\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">radar<\/a> meteorol&#xF3;gico.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"799\" height=\"522\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-3.png\" alt=\"\" class=\"wp-image-547\" style=\"width:588px;height:383px\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-3.png 799w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-3-300x196.png 300w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-3-768x502.png 768w\" sizes=\"auto, (max-width: 799px) 100vw, 799px\"\/><figcaption class=\"wp-element-caption\"><strong>Itens e partes de uma aeronave <\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"has-large-font-size wp-block-paragraph\"><strong><a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_e71fc4175d1ac79cac79f5369987fe4f\" data-link=\"https:\/\/hangarmma.com.br\/blog\/identificacao-de-materiais\/\" href=\"https:\/\/hangarmma.com.br\/blog\/identificacao-de-materiais\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">IDENTIFICA&#xC7;&#xC3;O DE MATERIAIS<\/a> AERON&#xC1;UTICOS<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Parafusos e rebites s&#xE3;o usualmente identificados pelas letras: <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>AN (Air Force &#x2013; Navy) &#xA0; <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>NAS (National Aircraft Standard)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>MS (Military Standard) <\/strong>seguidas de n&#xFA;meros.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"424\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-4-1024x424.png\" alt=\"\" class=\"wp-image-549\" style=\"width:774px;height:320px\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-4-1024x424.png 1024w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-4-300x124.png 300w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-4-768x318.png 768w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-4.png 1089w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><figcaption class=\"wp-element-caption\">Part number (PN) de rebites e parafusos<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>PARAFUSOS DE AERONAVES<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S&#xE3;o dispositivos de fixa&#xE7;&#xE3;o, que permitem\nseguran&#xE7;a e rigidez&#xA0; na uni&#xE3;o de pe&#xE7;as.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Existem dois tipos de parafusos: <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. Bolts<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Screws<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Bolts: <\/strong>Utilizados quando se necessita grande firmeza. Possui&#xA0; normalmente uma porca como parte integrante do conjunto.  <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> <strong>Screws: <\/strong>de rosca soberba, quando a firmeza n&#xE3;o &#xE9; um fator importante.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"849\" height=\"294\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-5.png\" alt=\"\" class=\"wp-image-552\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-5.png 849w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-5-300x104.png 300w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-5-768x266.png 768w\" sizes=\"auto, (max-width: 849px) 100vw, 849px\"\/><figcaption class=\"wp-element-caption\">Bolts e screws<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>CLASSIFICA&#xC7;&#xC3;O DOS FIOS DE ROSCA <\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Parafusos <strong>bolts<\/strong>, <strong>screws <\/strong>e <strong>porcas <\/strong>s&#xE3;o fabricados em um dos&#xA0; seguintes tipos de fios de rosca:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> &#x2022;<strong>NC <\/strong>(American National Coarse), s&#xE9;rie de filetes grossos destinados ao uso em metais.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> &#x2022;<strong>NF <\/strong>(American National Fine), <strong>s&#xE9;ries de filetes finos <\/strong>destinados ao uso geral em aeronaves e motores;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> &#x2022;<strong>UNC &#xA0;<\/strong>(American&#xA0; Standard &#xA0;Unified&#xA0; Coarse) &#xA0;ou &#xA0;UNF &#xA0;(American&#xA0; Standard Unified Fine).<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"309\" height=\"277\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-6.png\" alt=\"\" class=\"wp-image-554\" style=\"width:544px;height:488px\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-6.png 309w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-6-300x269.png 300w\" sizes=\"auto, (max-width: 309px) 100vw, 309px\"\/><figcaption class=\"wp-element-caption\">Padr&#xE3;o de Filetes de roscas<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">No parafuso de uma polegada (1&#x2033;) de di&#xE2;metro do tipo <strong>NF <\/strong>(American&#xA0; <strong>N<\/strong>ational <strong>F<\/strong>ine), que ser&#xE1; especificado como <strong>1-14NF<\/strong>, indicando possuir 14 fios&#xA0; de rosca em cada polegada.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"461\" height=\"357\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-7.png\" alt=\"\" class=\"wp-image-556\" style=\"width:461px;height:358px\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-7.png 461w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-7-300x232.png 300w\" sizes=\"auto, (max-width: 461px) 100vw, 461px\"\/><figcaption class=\"wp-element-caption\"><strong>Parafuso tipo NF<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">&#xC9; considerado o n&#xFA;mero de vezes que o fio de rosca completa uma volta no&#xA0; espa&#xE7;o de uma polegada.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Classifica&#xE7;&#xE3;odos fios de rosca\" width=\"600\" height=\"338\" src=\"https:\/\/www.youtube.com\/embed\/cnm4OanJJew?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\">Classifica&#xE7;&#xE3;o dos fios de rosca<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>PARAFUSOS DE AVIA&#xC7;&#xC3;O<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S&#xE3;o fabricados em a&#xE7;o resistente &#xE0; corros&#xE3;o, com banho de&#xA0; <strong>c&#xE1;dmio <\/strong>ou de <strong>zinco<\/strong>, de a&#xE7;o resistente &#xE0; corros&#xE3;o, sem banho ou&#xA0; ainda de liga de alum&#xED;nio <strong>anodizado<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"305\" height=\"204\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-8.png\" alt=\"\" class=\"wp-image-557\" style=\"width:404px;height:270px\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-8.png 305w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-8-300x201.png 300w\" sizes=\"auto, (max-width: 305px) 100vw, 305px\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Os&#xA0; parafusos&#xA0; especiais s&#xE3;o normalmente identificados por&#xA0; uma letra <strong><em>&#x201C;S&#x201D; <\/em><\/strong>estampada na cabe&#xE7;a.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"144\" height=\"173\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-9.png\" alt=\"\" class=\"wp-image-558\" style=\"width:292px;height:351px\"\/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>PARAFUSOS DE TOLER&#xC2;NCIA M&#xCD;NIMA<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"> Esse tipo de parafuso &#xE9; fabricado com mais cuidado do que o de uso geral.&#xA0; Eles s&#xE3;o usados em aplica&#xE7;&#xF5;es onde uma ajustagem forte &#xE9; requerida.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"128\" height=\"167\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-10.png\" alt=\"\" class=\"wp-image-559\" style=\"width:230px;height:299px\"\/><\/figure>\n<\/div>\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"718\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-11.png\" alt=\"\" class=\"wp-image-560\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-11.png 960w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-11-300x224.png 300w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-11-768x574.png 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong> IDENTIFICA&#xC7;&#xC3;O E C&#xD3;DIGOS DOS PARAFUSOS DE AERONAVES<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Podem ser identificados pelo formato da cabe&#xE7;a, m&#xE9;todo de fixa&#xE7;&#xE3;o,&#xA0; material usado na fabrica&#xE7;&#xE3;o ou emprego  determinado.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PART NUMBER AN3DD5A<\/strong><\/p>\n\n\n\n<p class=\"has-accent-color has-text-color has-huge-font-size wp-block-paragraph\"><strong>AN3DD5A<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>AN<\/strong>:\nAir\nForce-Navy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3<\/strong>:\nDi&#xE2;metro\nem dezesseis avos da polegada (3\/16&#x2033;).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>DD: <\/strong>Liga\nde alum&#xED;nio 2024.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C<\/strong>:\nNo\nlugar de &#x201C;D&#x201D;, indicaria a&#xE7;o resistente &#xE0; corros&#xE3;o e, a&#xA0; aus&#xEA;ncia das letras, indicaria a&#xE7;o com banho\nde c&#xE1;dmio.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5<\/strong>: Comprimento em oitavos da polegada (5\/8&#x2033;).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A<\/strong>: Indica n&#xE3;o possuir furo para <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_493cc332dcfed1f5131407736dfcf366\" data-link=\"https:\/\/hangarmma.com.br\/blog\/contra-pino\/\" href=\"https:\/\/hangarmma.com.br\/blog\/contra-pino\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">contra-pino<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Parafusos de aeronaves para fins especiais<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"> Fabricados para uma particular aplica&#xE7;&#xE3;o. Exemplo:  <strong>Clevis, Olhal, <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_550aad7c3302758127cc302a34eed15c\" data-link=\"https:\/\/hangarmma.com.br\/blog\/jobolts\/\" href=\"https:\/\/hangarmma.com.br\/blog\/jobolts\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Jobolts<\/a> e Lockbolts. <\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PARAFUSOS CLEVIS<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A cabe&#xE7;a de um <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_0c9d6fc7a6c80e1fbba0ef796a87522f\" data-link=\"https:\/\/hangarmma.com.br\/blog\/parafuso-clevis\/\" href=\"https:\/\/hangarmma.com.br\/blog\/parafuso-clevis\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">parafuso Clevis<\/a> &eacute;\nredonda e possui ranhuras para&nbsp; receber\numa <a class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"cmtt_b1d11f85f3d90f78d8cf1017335b23b1\"  data-link=\"https:\/\/hangarmma.com.br\/blog\/chave\/\"  href=\"https:\/\/hangarmma.com.br\/blog\/chave\/\"  target=\"_blank\"  data-mobile-support=\"0\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>chave<\/a> de fenda comum, ou para receber uma <a class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"cmtt_b1d11f85f3d90f78d8cf1017335b23b1\"  data-link=\"https:\/\/hangarmma.com.br\/blog\/chave\/\"  href=\"https:\/\/hangarmma.com.br\/blog\/chave\/\"  target=\"_blank\"  data-mobile-support=\"0\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>chave<\/a> em cruz.&nbsp; Caracteristica: <strong>Cargas de <\/strong><strong>Cizalhamento<\/strong><strong> <\/strong>nunca\ntens&#xE3;o (tra&#xE7;&#xE3;o).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"594\" height=\"325\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-16.png\" alt=\"\" class=\"wp-image-575\" style=\"width:542px;height:295px\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-16.png 594w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-16-300x164.png 300w\" sizes=\"auto, (max-width: 594px) 100vw, 594px\"\/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>PARAFUSOS<\/strong><strong> <\/strong><strong>OLHAL<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Este tipo de parafuso especial &#xE9; usado onde cargas de tens&#xE3;o s&#xE3;o&#xA0; aplicadas. O Olhal tem por finalidade permitir a  fixa&#xE7;&#xE3;o de pe&#xE7;as.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"560\" height=\"178\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-13.png\" alt=\"\" class=\"wp-image-563\" style=\"width:555px;height:175px\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-13.png 560w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-13-300x95.png 300w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>JOBOLTS<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A alta resist&#xEA;ncia ao cizalhamento e a tens&#xE3;o (tra&#xE7;&#xE3;o) <\/strong>torna-o&#xA0; adequado ao uso em grandes esfor&#xE7;os, onde os outros tipos&#xA0; de fixadores s&#xE3;o impratic&#xE1;veis.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"518\" height=\"233\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-14.png\" alt=\"\" class=\"wp-image-564\" style=\"width:559px;height:251px\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-14.png 518w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-14-300x135.png 300w\" sizes=\"auto, (max-width: 518px) 100vw, 518px\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Instala&#xE7;&#xE3;o de rebite Jobolt\" width=\"600\" height=\"338\" src=\"https:\/\/www.youtube.com\/embed\/tfNEVjXMwO0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\"><strong>Instala&#xE7;&#xE3;o rebite Jobolt<\/strong><\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>LOCKBOLTS<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lockbolts combinam as caracter&#xED;sticas de um parafuso e de um rebite de grande&#xA0; resist&#xEA;ncia, mas possuem vantagens sobre ambos. Requer&#xA0; uma&#xA0; ferramenta&#xA0; pneum&#xE1;tica&#xA0; para&#xA0; sua&#xA0; instala&#xE7;&#xE3;o.&#xA0; Quando&#xA0; instalado, ele permanecer&#xE1; r&#xED;gido  e permanentemente fixo no local.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"369\" height=\"174\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-15.png\" alt=\"\" class=\"wp-image-566\" style=\"width:472px;height:223px\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-15.png 369w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/02\/image-15-300x141.png 300w\" sizes=\"auto, (max-width: 369px) 100vw, 369px\"\/><\/figure>\n<\/div>\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Instala&#xE7;&#xE3;o de fixador aeron&#xE1;utico Lockbolt\" width=\"600\" height=\"338\" src=\"https:\/\/www.youtube.com\/embed\/9c3K0oObKOs?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\"> <br><strong>INSTALA&#xC7;&#xC3;O DE LOCKBOLTS<\/strong> <\/figcaption><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">Parafusos de aeronaves e identifica&#xE7;&#xE3;o<\/h1>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/youtu.be\/ktNIU63Capc\n<\/div><\/figure>\n\n\n\n<p class=\"has-text-align-left has-very-light-gray-color has-text-color has-background has-medium-font-size wp-block-paragraph\" style=\"background-color:#037fb5\"><strong>MATERIAL DE APOIO<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>DOWNLOAD<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2019\/03\/Chapter-05-Aircraft-Materials-Processes-Hardware.pdf\">Chapter 05 Aircraft Materials, Processes &amp; Hardware (ORIGINAL)<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"glossario-fixadores\"><strong>Gloss&#xE1;rio &#x2014; Parafusos e Fixadores de Aeronaves<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Navega&#xE7;&#xE3;o r&#xE1;pida:<\/strong> <a href=\"#anodizacao\">Anodiza&#xE7;&#xE3;o<\/a> &#x2022; <a href=\"#banho-cadmio\">Banho de c&#xE1;dmio<\/a> &#x2022; <a href=\"#banho-zinco\">Banho de zinco<\/a> &#x2022; <a href=\"#bolts\">Bolts (parafusos com porca)<\/a> &#x2022; <a href=\"#carga-cisalhamento\">Carga de cisalhamento<\/a> &#x2022; <a href=\"#carga-tracao\">Carga de tra&#xE7;&#xE3;o<\/a> &#x2022; <a href=\"#clevis\">Clevis (parafuso clevis)<\/a> &#x2022; <a href=\"#contra-pino\">Contra-pino<\/a> &#x2022; <a href=\"#designacoes-an-nas-ms\">Designa&#xE7;&#xF5;es AN \/ NAS \/ MS<\/a> &#x2022; <a href=\"#diametro-dezesseis-avos\">Di&#xE2;metro em dezesseis avos<\/a> &#x2022; <a href=\"#filetes-rosca\">Filetes de rosca (NC, NF, UNC, UNF)<\/a> &#x2022; <a href=\"#jobolt\">Jobolt<\/a> &#x2022; <a href=\"#lockbolt\">Lockbolt<\/a> &#x2022; <a href=\"#marca-s-cabeca\">Marca &#x201C;S&#x201D; na cabe&#xE7;a<\/a> &#x2022; <a href=\"#material-c-d-dd\">Material do parafuso (C, D, DD)<\/a> &#x2022; <a href=\"#min-tolerance\">Parafusos de toler&#xE2;ncia m&#xED;nima<\/a> &#x2022; <a href=\"#part-number\">Part number (ex.: AN3DD5A)<\/a> &#x2022; <a href=\"#porca\">Porca<\/a> &#x2022; <a href=\"#screws\">Screws (parafusos de rosca soberba)<\/a> &#x2022; <a href=\"#tpi\">TPI &#x2014; fios por polegada<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"anodizacao\"><strong>Anodiza&#xE7;&#xE3;o<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tratamento de superf&#xED;cie em <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_9a3488038639698c6a90140a48c478ee\" data-link=\"https:\/\/hangarmma.com.br\/blog\/ligas-de-aluminio\/\" href=\"https:\/\/hangarmma.com.br\/blog\/ligas-de-aluminio\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">ligas de alum&#xED;nio<\/a> que cria uma camada protetora contra corros&#xE3;o. Em fixadores, aparece como acabamento t&#xED;pico em alguns parafusos de alum&#xED;nio.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"banho-cadmio\"><strong>Banho de c&#xE1;dmio<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Revestimento aplicado em parafusos de a&#xE7;o para melhorar a resist&#xEA;ncia &#xE0; corros&#xE3;o e facilitar a montagem (lubricidade). &#xC9; uma forma comum de prote&#xE7;&#xE3;o em hardware aeron&#xE1;utico.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"banho-zinco\"><strong>Banho de zinco<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Prote&#xE7;&#xE3;o superficial alternativa ao c&#xE1;dmio para reduzir corros&#xE3;o. O tipo de banho &#xE9; definido pelo projeto e pela norma do fixador.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"bolts\"><strong>Bolts (parafusos com porca)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Fixadores usados quando &#xE9; necess&#xE1;ria grande firmeza e rigidez. Normalmente trabalham em conjunto com uma porca e, muitas vezes, com arruelas apropriadas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"carga-cisalhamento\"><strong>Carga de cisalhamento<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Esfor&#xE7;o lateral que tende a cortar o fixador. Alguns parafusos especiais (como o clevis) s&#xE3;o destinados a suportar cisalhamento, n&#xE3;o tra&#xE7;&#xE3;o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"carga-tracao\"><strong>Carga de tra&#xE7;&#xE3;o<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Esfor&#xE7;o axial que &#x201C;puxa&#x201D; o fixador ao longo do seu eixo. Parafusos olhal, por exemplo, s&#xE3;o projetados para aplica&#xE7;&#xF5;es onde a tra&#xE7;&#xE3;o &#xE9; predominante.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"clevis\"><strong>Clevis (parafuso clevis)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Parafuso especial de cabe&ccedil;a redonda com ranhuras para <a class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"cmtt_b1d11f85f3d90f78d8cf1017335b23b1\"  data-link=\"https:\/\/hangarmma.com.br\/blog\/chave\/\"  href=\"https:\/\/hangarmma.com.br\/blog\/chave\/\"  target=\"_blank\"  data-mobile-support=\"0\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>chave<\/a> de fenda\/cruz. &Eacute; aplicado em <em>cargas de cisalhamento<\/em> (nunca em tra&#xE7;&#xE3;o), em articula&#xE7;&#xF5;es e liga&#xE7;&#xF5;es que pedem pino\/parafuso do tipo &#x201C;clevis&#x201D;.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"contra-pino\"><strong>Contra-pino<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Dispositivo de seguran&#xE7;a passado por um furo na extremidade do parafuso ou porca castelo para impedir afrouxamento. Em c&#xF3;digos de pe&#xE7;a, a letra final &#x201C;A&#x201D; pode indicar que <em>n&#xE3;o<\/em> h&#xE1; furo para <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_493cc332dcfed1f5131407736dfcf366\" data-link=\"https:\/\/hangarmma.com.br\/blog\/contra-pino\/\" href=\"https:\/\/hangarmma.com.br\/blog\/contra-pino\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">contra-pino<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"designacoes-an-nas-ms\"><strong>Designa&#xE7;&#xF5;es AN \/ NAS \/ MS<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sistemas de padroniza&#xE7;&#xE3;o de hardware aeron&#xE1;utico. AN (Air Force&#x2013;Navy), NAS (National Aircraft Standard) e MS (Military Standard) antecedem n&#xFA;meros que definem dimens&#xF5;es, material e aplica&#xE7;&#xE3;o do fixador.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"diametro-dezesseis-avos\"><strong>Di&#xE2;metro em dezesseis avos<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Forma tradicional de especificar o di&#xE2;metro do parafuso em polegadas. Ex.: &#x201C;AN<strong>3<\/strong>&#x201D; indica 3\/16&#x2033; (tr&#xEA;s dezesseis avos) de di&#xE2;metro.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"filetes-rosca\"><strong>Filetes de rosca (NC, NF, UNC, UNF)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Classifica&#xE7;&#xF5;es de passo da rosca. NC\/NF s&#xE3;o s&#xE9;ries American National (grossa\/fina) e UNC\/UNF s&#xE3;o s&#xE9;ries Unified (grossa\/fina). Em um parafuso &#x201C;1&#x2013;14NF&#x201D;, h&#xE1; 14 filetes por polegada no padr&#xE3;o NF.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"jobolt\"><strong>Jobolt<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Fixador de alta resist&#xEA;ncia tanto ao cisalhamento quanto &#xE0; tra&#xE7;&#xE3;o, empregado onde grandes esfor&#xE7;os inviabilizam o uso de fixadores convencionais.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"lockbolt\"><strong>Lockbolt<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Combina caracter&#xED;sticas de parafuso e rebite estrutural. &#xC9; instalado com ferramenta pneum&#xE1;tica e, ap&#xF3;s montado, permanece r&#xED;gido e permanente, oferecendo alta resist&#xEA;ncia.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"marca-s-cabeca\"><strong>Marca &#x201C;S&#x201D; na cabe&#xE7;a<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Letra estampada na cabe&#xE7;a que identifica um <em>parafuso especial<\/em>. Indica que o fixador pertence a uma categoria com requisitos al&#xE9;m dos de uso geral.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"material-c-d-dd\"><strong>Material do parafuso (C, D, DD)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C&#xF3;digos que aparecem no part number para indicar material\/acabamento. Ex.: &#x201C;DD&#x201D; = liga de alum&#xED;nio 2024; &#x201C;C&#x201D; poderia indicar a&#xE7;o resistente &#xE0; corros&#xE3;o; aus&#xEA;ncia das letras pode indicar a&#xE7;o com banho de c&#xE1;dmio (conforme a codifica&#xE7;&#xE3;o do fabricante\/norma).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"min-tolerance\"><strong>Parafusos de toler&#xE2;ncia m&#xED;nima<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Fabricados com controle dimensional mais apertado do que os de uso geral. Aplicados onde se exige ajuste justo (interfer&#xEA;ncia leve) para rigidez elevada.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"part-number\"><strong>Part number (ex.: AN3DD5A)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C&#xF3;digo que descreve o fixador. Exemplo: &#x201C;AN&#x201D; = padr&#xE3;o; &#x201C;3&#x201D; = di&#xE2;metro em dezesseis avos (3\/16&#x2033;); &#x201C;DD&#x201D; = material (liga 2024); &#x201C;5&#x201D; = comprimento em oitavos (5\/8&#x2033;); &#x201C;A&#x201D; = sem furo para <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_493cc332dcfed1f5131407736dfcf366\" data-link=\"https:\/\/hangarmma.com.br\/blog\/contra-pino\/\" href=\"https:\/\/hangarmma.com.br\/blog\/contra-pino\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">contra-pino<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"porca\"><strong>Porca<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_bffef08b914d0fc34e38dcb91935e2d4\" data-link=\"https:\/\/hangarmma.com.br\/blog\/elemento\/\" href=\"https:\/\/hangarmma.com.br\/blog\/elemento\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Elemento<\/a> roscado que trabalha com o parafuso (bolt). Deve ser compat&#xED;vel com o padr&#xE3;o de rosca (ex.: UNF) e, quando aplic&#xE1;vel, receber dispositivos de seguran&#xE7;a (<a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_493cc332dcfed1f5131407736dfcf366\" data-link=\"https:\/\/hangarmma.com.br\/blog\/contra-pino\/\" href=\"https:\/\/hangarmma.com.br\/blog\/contra-pino\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">contra-pino<\/a>, castelo, trava).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"screws\"><strong>Screws (parafusos de rosca soberba)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Parafusos que formam a pr&#xF3;pria rosca no material (chapas finas, por exemplo). Usados quando a firmeza extrema n&#xE3;o &#xE9; o requisito principal, diferindo dos <em>bolts<\/em> com porca.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"tpi\"><strong>TPI &#x2014; fios por polegada<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">&#x201C;Threads Per Inch&#x201D;: contagem de filetes em uma polegada. Define o passo da rosca e aparece em especifica&#xE7;&#xF5;es como &#x201C;1&#x2013;14NF&#x201D;.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq-fixadores\"><strong>FAQ &#x2014; Perguntas Frequentes<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P: Como diferenciar rapidamente um &#x201C;bolt&#x201D; de um &#x201C;screw&#x201D; na pr&#xE1;tica?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: O <em>bolt<\/em> normalmente trabalha com porca e &#xE9; escolhido quando a rigidez &#xE9; essencial. O <em>screw<\/em> de rosca soberba cria sua rosca no material (como chapas) e &#xE9; usado onde a exig&#xEA;ncia de firmeza &#xE9; menor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P: Quando escolher rosca UNF em vez de UNC?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: UNF (fina) &#xE9; preferida em aplica&#xE7;&#xF5;es aeron&#xE1;uticas por permitir maior &#xE1;rea de <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_f0275eb16568afdfc614793b73581fbd\" data-link=\"https:\/\/hangarmma.com.br\/blog\/contato\/\" href=\"https:\/\/hangarmma.com.br\/blog\/contato\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">contato<\/a> e ajuste mais preciso, especialmente em materiais finos; UNC (grossa) &#xE9; mais indicada para materiais macios\/espessos e montagens menos cr&#xED;ticas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P: O que significa &#x201C;AN3DD5A&#x201D; em um part number?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: Padr&#xE3;o AN; di&#xE2;metro 3\/16&#x2033;; material &#x201C;DD&#x201D; (liga 2024); comprimento 5\/8&#x2033;; e &#x201C;A&#x201D; informando que o parafuso n&#xE3;o possui furo para <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_493cc332dcfed1f5131407736dfcf366\" data-link=\"https:\/\/hangarmma.com.br\/blog\/contra-pino\/\" href=\"https:\/\/hangarmma.com.br\/blog\/contra-pino\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">contra-pino<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P: Para que serve a letra &#x201C;S&#x201D; gravada na cabe&#xE7;a do parafuso?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: Indica que &#xE9; um parafuso especial, com requisitos al&#xE9;m dos de uso geral. Essa marca facilita a identifica&#xE7;&#xE3;o r&#xE1;pida durante a <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_9f121fb8c1078cb5a639d70d35f8e941\" data-link=\"https:\/\/hangarmma.com.br\/blog\/maintenance\/\" href=\"https:\/\/hangarmma.com.br\/blog\/maintenance\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">manuten&#xE7;&#xE3;o<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P: Em que situa&#xE7;&#xE3;o usar um <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_0c9d6fc7a6c80e1fbba0ef796a87522f\" data-link=\"https:\/\/hangarmma.com.br\/blog\/parafuso-clevis\/\" href=\"https:\/\/hangarmma.com.br\/blog\/parafuso-clevis\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">parafuso clevis<\/a>?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: Em articula&#xE7;&#xF5;es sujeitas predominantemente a cisalhamento. O clevis n&#xE3;o deve ser usado para resistir a tra&#xE7;&#xE3;o axial.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P: Qual a vantagem de lockbolts em rela&#xE7;&#xE3;o a bolts tradicionais?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: Lockbolts oferecem junta r&#xED;gida e permanente, alta resist&#xEA;ncia e consist&#xEA;ncia dimensional ap&#xF3;s a instala&#xE7;&#xE3;o com ferramenta pneum&#xE1;tica, reduzindo afrouxamento em servi&#xE7;o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P: O que s&#xE3;o <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_00c8863737b3990c5039027b11c1a29f\" data-link=\"https:\/\/hangarmma.com.br\/blog\/parafusos-de-tolerancia-minima\/\" href=\"https:\/\/hangarmma.com.br\/blog\/parafusos-de-tolerancia-minima\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">parafusos de toler&#xE2;ncia m&#xED;nima<\/a> e por que us&#xE1;-los?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: S&#xE3;o fixadores usinados com folgas muito pequenas, empregados onde se deseja ajuste forte e m&#xED;nimo jogo, aumentando a rigidez da uni&#xE3;o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P: O acabamento (c&#xE1;dmio, zinco, <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_6c4d2b36d2e7af1a2961023612e3c870\" data-link=\"https:\/\/hangarmma.com.br\/blog\/anodizacao\/\" href=\"https:\/\/hangarmma.com.br\/blog\/anodizacao\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">anodiza&#xE7;&#xE3;o<\/a>) muda algo na aplica&#xE7;&#xE3;o?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: Sim. O acabamento influencia a resist&#xEA;ncia &#xE0; corros&#xE3;o e a lubrifica&#xE7;&#xE3;o na montagem. O tipo correto deve seguir a especifica&#xE7;&#xE3;o do projeto do fixador.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P: Como interpretar &#x201C;1&#x2013;14NF&#x201D; na especifica&#xE7;&#xE3;o da rosca?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: Indica um parafuso de 1&#x2033; de di&#xE2;metro com 14 fios por polegada no padr&#xE3;o NF (s&#xE9;rie fina American National).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>P: Quando optar por parafusos olhal (eye bolts)?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: Quando a aplica&#xE7;&#xE3;o imp&#xF5;e <em>tra&#xE7;&#xE3;o<\/em> axial e &#xE9; necess&#xE1;rio um ponto de fixa&#xE7;&#xE3;o por olhal. Eles n&#xE3;o substituem pinos\/clevis em articula&#xE7;&#xF5;es de cisalhamento.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Na manuten\u00e7\u00e3o de aeronaves, mesmo um pequeno desvio&nbsp; do projeto original, ou a simples substitui\u00e7\u00e3o de materiais inferiores, pode resultar na perda de vidas e ou equipamentos, isso inclui parasusos e fixadores de aeronaves. Isso me faz lembrar o acidente da British Airways 5390 em 1990 causado pela instala\u00e7\u00e3o errada dos fixadores do para-brisas da [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":568,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[149,62],"tags":[21],"class_list":["post-545","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-estruturas","category-manutencao","tag-fixadores"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Quais as caracter\u00edsticas de Parafusos e fixadores de aeronaves?<\/title>\n<meta name=\"description\" content=\"Na manuten\u00e7\u00e3o de aeronaves, mesmo um pequeno desvio do projeto original, ou a simples substitui\u00e7\u00e3o de materiais inferiores, pode resultar na perda de vidas e ou 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