[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-563795-105":3,"doc-detail-563795-en":81,"detail-sidebar-cat-1-en-105":97},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","an-thread-sizes-technical-reference-guide","AN Thread Sizes - Technical Reference Guide","","This technical guide provides a comprehensive overview of Army-Navy (AN) thread sizes, which are standard in the aerospace and performance plumbing industries. It clarifies the relationship between the designated AN size numbers, which correspond to the outside diameter (O.D.) of rigid metal tubing in 1/16-inch increments, and their specific thread standards. The document highlights the critical distinction between nominal AN size designations and actual internal diameters of hoses, noting that variations exist among manufacturers. Furthermore, it emphasizes the importance of safety through a mandatory instruction to pressure test all hose assemblies prior to installation. The guide includes practical technical data for various sizing requirements, alongside professional contact details for Motorcycle Performance Specialties, serving as a reliable resource for technicians and engineers in the high-performance automotive and industrial sectors.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/template/","Template",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/template/general/","General",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/template/an-thread-sizes-technical-reference-guide/563795/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/an-thread-sizes-technical-reference-guide/563795.png","ImageObject",442,249,{"name":42,"@type":43},"Putri","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-11-03","2026-10-12",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",11,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What does the AN size number represent?","Question",{"text":63,"@type":64},"The AN size number represents the outside diameter (O.D.) of the rigid metal tubing that the fitting is designed for, measured in 1/16-inch increments.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"Does the AN size number indicate the internal diameter of the hose?",{"text":68,"@type":64},"No, the designated size number does not necessarily indicate the internal diameter, as inside diameters can vary between different manufacturers despite sharing the same AN size rating.",{"name":70,"@type":61,"acceptedAnswer":71},"What is a critical safety recommendation provided for hose assemblies?",{"text":72,"@type":64},"It is essential to pressure test all hose assemblies thoroughly before they are installed to ensure system integrity and prevent potential failures.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},563795,1792021334,{"code":4,"msg":82,"data":83},"success",{"doc_id":79,"user_id":84,"nickname":42,"user_avatar":85,"doc_module":22,"category_id":86,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":87,"file_id":88,"file_url":89,"file_type":90,"file_size":91,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":22,"language":92,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":93,"faqs":94,"seo_title":95,"seo_description":12,"update_tm":96,"read_time":4},962085571259,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0",158,"\"AN\" Thread Sizes  \n\"AN\" (Army-Navy) Sizes were established by the Aerospace industry years ago and were designated O. D. of the rigid metal tube that each size fitting is used with. (The chart below will clarify this point.)  \nThe numbers assigned equate to the O. D. (outside diameters) of the tubing in 1/16\". Since tubing and hoses are to be found with assorted wall thicknesses we can now understand that the designated size number does not necessarily tell you how large the inside diameter will be. (For example, the inside diameter of an Earl's size 6 hose end is nearly as large as the inside diameter of some other manufacturers' -8 hose ends.)  \nEach AN size number has its own standard thread size which can be seen in column three of the chart. Again, these are the same thread sizes that have been used in aircraft and industrial applications for many years.  \n| 28 | 1-3/4\" | 2-1/4-12 SAE |\n| --- | --- | --- |\n\n\n| 32 | 2\" | 2-1/2-12 SAE |\n| --- | --- | --- |\n\nPressure Test All Hose  \nAssemblies Before Installation!  \nMotorcycle Performance Specialties  \n380 Orange Lane-Casselberry, Florida 32707 Phone: (321) 972-8282-Fax: (321) 972-5123 Hours: 9am-5pm, Monday-Friday  \nSales E-Mail: [sales@mpsracing.com](sales@mpsracing.com)","cbCais1fPfLlM2VV","https://ap.wps.com/l/cbCais1fPfLlM2VV","pdf",88234,"English","# Understanding AN Thread Sizes\n## Industry Standardization\n## Size and Diameter Relationships\n## Technical Data and Safety Guidelines","[{\"question\":\"What does the AN size number represent?\",\"answer\":\"The AN size number represents the outside diameter (O.D.) of the rigid metal tubing that the fitting is designed for, measured in 1/16-inch increments.\"},{\"question\":\"Does the AN size number indicate the internal diameter of the hose?\",\"answer\":\"No, the designated size number does not necessarily indicate the internal diameter, as inside diameters can vary between different manufacturers despite sharing the same AN size rating.\"},{\"question\":\"What is a critical safety recommendation provided for hose assemblies?\",\"answer\":\"It is essential to pressure test all hose assemblies thoroughly before they are installed to ensure system integrity and prevent potential failures.\"}]","AN Thread Sizes - Technical Reference Guide | PDF",1791838530,{"code":4,"msg":82,"data":98},[99,103,108,113,118,123,128,133,138],{"id":55,"doc_module":22,"doc_module_name":25,"category_name":100,"show_sort_weight":101,"slug":102},"Presentations",90,"presentations",{"id":104,"doc_module":22,"doc_module_name":25,"category_name":105,"show_sort_weight":106,"slug":107},12,"Resumes",80,"resumes",{"id":109,"doc_module":22,"doc_module_name":25,"category_name":110,"show_sort_weight":111,"slug":112},14,"Invoices",70,"invoices",{"id":114,"doc_module":22,"doc_module_name":25,"category_name":115,"show_sort_weight":116,"slug":117},15,"Posters",60,"posters",{"id":119,"doc_module":22,"doc_module_name":25,"category_name":120,"show_sort_weight":121,"slug":122},16,"Social Media",50,"social-media",{"id":124,"doc_module":22,"doc_module_name":25,"category_name":125,"show_sort_weight":126,"slug":127},17,"Forms",40,"forms",{"id":129,"doc_module":22,"doc_module_name":25,"category_name":130,"show_sort_weight":131,"slug":132},18,"Letters",30,"letters",{"id":134,"doc_module":22,"doc_module_name":25,"category_name":135,"show_sort_weight":136,"slug":137},21,"Paper Templates",5,"papers-templates",{"id":86,"doc_module":22,"doc_module_name":25,"category_name":29,"show_sort_weight":4,"slug":139},"general-158"]