AIA NAS498 PDF

This specification defines the requirements for alloy steel externally threaded fasteners procured under part numbers listed on drawings which refer to this specification. Typically these fasteners are used for shear applications where 95,000 PSI Fsu is desired with a service temperature capability to 450º F. Receiving contractors may reject any manufactured lot which does not conform.

Workmanship of fasteners shall conform with aircraft fastener manufacturing processes.

Recommendations for improvements or corrections to this specification should be directed to an NASC representative of a using company or to the Executive Secretary of the National Aerospace Standards Committee.

Specifications listed herein, of the issue in effect on date of price inquiry are a part of this specification to the extent indicated. In the case of conflict, the requirements herein shall take precedence.