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 5950-01-024-9461
NSN 4140-01-134-5047
NSN 5945-01-074-3634
NSN 5910-01-382-8803
NSN 5950-01-585-8855
NSN 7035-01-359-3915
NSN 6240-00-803-2777
NSN 5996-01-304-9119
NSN 5910-01-246-4510
NSN 7035-00-541-8516
NSN 5910-01-536-6766
NSN 5998-01-634-0604