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 5910-00-499-2570
NSN 6150-00-958-0473
NSN 6145-00-815-1369
NSN 5935-00-100-0101
NSN 2925-00-580-3018
NSN 5895-00-269-2697
NSN 6110-00-170-6520
NSN 5910-01-021-9172
NSN 5935-00-808-0618
NSN 6130-00-883-9333
NSN 5950-01-417-5599
NSN 5975-00-844-1066