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 5985-01-112-3391
NSN 5855-01-462-0495
NSN 5855-01-020-7982
NSN 2925-00-371-2285
NSN 6130-00-516-3559
NSN 5855-01-250-2421
NSN 6645-01-467-9983
NSN 6610-00-251-7073
NSN 5975-01-546-1203
NSN 5945-01-034-3570
NSN 6145-01-259-7055
NSN 5935-01-230-5846