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 5910-00-684-8343
NSN 6150-00-181-1711
NSN 5945-01-472-6266
NSN 5905-00-343-0670
NSN 5920-01-416-4274
NSN 5910-01-534-2027
NSN 6110-01-534-5818
NSN 5998-01-165-5452
NSN 6240-01-371-3020
NSN 5985-01-427-9852
NSN 5915-00-557-0878
NSN 6145-00-174-9344