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 5935-00-925-2536
NSN 5910-00-287-3258
NSN 6240-01-473-0049
NSN 6130-01-659-4000
NSN 5905-00-015-7271
NSN 6240-00-110-9414
NSN 6645-00-467-6094
NSN 4140-01-500-3939
NSN 6645-01-649-4770
NSN 6150-01-482-3390
NSN 5965-01-290-0535
NSN 5990-01-361-6424