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 5950-01-369-2346
NSN 5945-01-361-9116
NSN 5920-00-252-3197
NSN 5930-01-345-1488
NSN 6145-01-293-3754
NSN 5996-01-592-4339
NSN 5915-00-101-2508
NSN 5905-01-140-0574
NSN 4140-01-628-6477
NSN 5925-01-153-0144
NSN 6110-00-940-9783
NSN 5935-00-713-9930