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 6650-00-958-7408
NSN 7035-00-490-0485
NSN 6645-01-633-1852
NSN 5999-00-502-7072
NSN 7035-00-152-6485
NSN 5990-01-579-2711
NSN 6650-01-365-1702
NSN 6650-01-436-3478
NSN 6240-01-185-5538
NSN 7035-00-938-8289
NSN 6610-00-435-1493
NSN 5990-01-548-3711