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 6610-00-371-1463
NSN 6610-00-450-2575
NSN 6220-01-104-9679
NSN 6110-01-182-2911
NSN 6320-00-116-3658
NSN 5855-01-224-7975
NSN 2925-01-038-7625
NSN 6650-01-630-2223
NSN 6145-01-104-5084
NSN 5935-01-649-7916
NSN 2925-01-596-9448
NSN 6145-00-466-4068