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 6130-01-056-5251
NSN 5925-01-542-9068
NSN 5855-01-646-5962
NSN 6240-01-339-5100
NSN 4140-01-650-1208
NSN 5996-00-178-1016
NSN 5930-01-236-9259
NSN 6150-00-583-3518
NSN 6610-01-322-7677
NSN 5996-00-338-9760
NSN 5998-01-196-6131
NSN 6145-01-296-2096