A soft metal or nonmetal sleeve, designed to mate with a pin-rivet. it may include an external wrenching facility which breaks off at a perdetermined torque to form a head.
NSN 5965-01-347-5878
NSN 5835-01-245-8077
NSN 6620-01-026-0346
NSN 6620-00-720-3278
NSN 5999-01-469-5421
NSN 5960-00-807-5272
NSN 6650-01-141-5999
NSN 4140-01-502-1370
NSN 6130-01-612-2270
NSN 5965-00-111-2073
NSN 5960-01-436-0349
NSN 6620-00-663-8962