What is an NAS/NA standard?
“NAS” stands for National Aerospace Standard. The NA prefix is for Metric standards. NAS standards include Part Standards for high strength, precision fasteners.

What is an NASM/NAM standard?
AIA, in coordination with the Department of Defense, has converted over 500 MIL-spec’s to NAS. These converted documents carry a “NASM” (for inch based) or “NAM” (for Metric based) prefix. The standard continues to be procured to the MS part number.

How can I participate in the NAS standards process?
Participation on the National Aerospace Standards Committee can be accomplished in a number of ways.

  • Join AIA and become an NASC committee member.
  • Submit proposed changes/questions/comments on NAS standards through our feedback page.
  • Become a Technical Advisor (PDF) (Word)

Does the AIA NASC manufacture/supply parts?
The Aerospace Industries Association is responsible for developing and maintaining standards for the National Aerospace Standard (NAS) parts, and some Mil-Specs (NASM/NAM) parts. However, we do not supply parts.

Does the NASC keep a list of suppliers?
No, not at this time. AIA works with industry experts to create standards and make them available to the industry, however, we do not qualify suppliers/manufacturers.

How does someone determine if a part manufacturer is qualified to manufacture an NAS or MS part in accordance with the NAS standards? Is there a Qualified Product List (QPL)?
At this time, the Aerospace Industries Association does not maintain QPLs for any of the NAS/MS parts.

To be sure a manufacturer is able and qualified to manufacture a part, the purchaser should review and understand the requirements of the standard and review the part manufacturer’s qualification report.
It is the responsibility of the manufacturer to provide a Qualification Report to the purchaser.  It is the purchaser’s responsibility to review the report to be sure the manufacturer meets the requirements of the specification.

If a Part Standard calls out a Procurement Specification that has Qualification Test Requirements, those requirements have to be met before the purchaser should buy parts from the manufacturer. After a manufacturer has met the requirements, it is up to the part manufacturer to perform the required test(s) for certification of conformance.  It is up to the purchaser to review those certifications to be sure they meet the requirements.

If a Part Standard does not have a qualification requirement, the purchaser should still determine if a part manufacturer’s products are manufactured in accordance with the Part Standard.