AIA/NAS - Aerospace Industries Association of America Inc.
Scope
Purpose. This specification establishes the requirements for pull-type and stump-type@ flush and protruding head@ swage locking pins and collars of various materials for use as permanent attachment fasteners. Classification. The swage locking pins and collars covered by this specification shall be of the types@ sizes and materials designated by the part numbers specified on the applicable NAS standards.