NAS1149 washers are widely specified military and aerospace washers designed to provide even load distribution and protect fastener bearing surfaces in demanding military applications. Superior Washer & Gasket Corp manufactures NAS1149 washers from DFARS-compliant materials with full material certifications and traceability for defense and aerospace procurement.
As an ISO 9001:2015 certified manufacturer, we produce NAS1149 military flat washers with precise dimensional control to meet National Aerospace Standard requirements. Our domestic manufacturing ensures Buy American and DFARS compliance, with documentation to support regulated procurement. All products are made in the U.S.A.
NAS1149 Military Washers Frequently Asked Questions
What are NAS1149 washers?
NAS1149 washers are mil-spec flat washers manufactured to National Aerospace Standard (NAS) specification NAS1149. They are among the most widely used aerospace standard washers, designed to provide even load distribution and protect fastener bearing surfaces in demanding military and aerospace applications.
What materials are NAS1149 washers available in?
NAS1149 washers are available in a wide range of materials including steel, stainless steel, aluminum, brass, copper, and monel. The material and dimensions are encoded in the full part number.
What drawing revision are your NAS1149 washers manufactured to?
Superior Washer NAS1149 washers are manufactured to REV 7 of the NAS1149 National Aerospace Standard specification.
Are your NAS1149 washers made in the USA with DFARS-compliant materials?
Yes. All NAS1149 washers are manufactured in the United States under our ISO 9001:2015 certified Quality Management System, audited by DNV. NAS1149 washers are available in multiple materials with different DFARS implications. Carbon steel, aluminum, brass, and copper variants are exempt from DFARS specialty metal restrictions. Stainless steel and monel variants are DFARS specialty metals and are sourced from the United States or qualifying countries in compliance with DFARS requirements. Material certifications and DFARS compliance documentation are available upon request.
NAS1149 washers are part of Superior Washer's extensive catalog of military flat washers manufactured to NAS, MS, and AN standards for defense and aerospace procurement.
