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 6145-01-096-1345
NSN 5999-00-625-5597
NSN 6150-01-431-7624
NSN 5945-01-461-9953
NSN 5930-01-200-4653
NSN 6150-01-163-8654
NSN 7035-01-419-1462
NSN 6135-00-985-7846
NSN 2925-00-816-8765
NSN 5999-00-840-7599
NSN 5895-00-740-2278
NSN 6220-01-604-6477