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 6320-00-456-2092
NSN 5990-01-459-9533
NSN 5895-00-227-4752
NSN 6320-01-449-1014
NSN 5950-01-413-0793
NSN 6130-00-182-7702
NSN 2925-01-250-2731
NSN 6130-00-773-0164
NSN 5945-01-566-0140
NSN 5925-01-123-9866
NSN 6110-01-406-3623
NSN 5905-00-406-1421