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 5935-01-357-6250
NSN 6650-01-234-4378
NSN 6110-01-186-7282
NSN 6645-01-613-2053
NSN 4140-01-313-1050
NSN 6130-01-068-9250
NSN 5935-00-505-0815
NSN 5925-00-816-9929
NSN 6240-01-226-6484
NSN 5920-01-063-7798
NSN 6620-01-069-0912
NSN 5960-01-536-9763