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 5965-01-046-9619
NSN 6650-00-353-4097
NSN 5996-01-395-2879
NSN 5990-01-419-0661
NSN 6110-00-957-3939
NSN 5960-01-442-7950
NSN 5920-00-936-7565
NSN 5999-01-329-5562
NSN 5935-01-437-9601
NSN 6220-01-418-0383
NSN 6240-01-305-6933
NSN 5910-00-214-9332