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 7035-01-442-7947
NSN 6105-01-464-6208
NSN 6130-01-345-9712
NSN 5905-01-106-4405
NSN 5975-01-204-2745
NSN 5835-01-406-4066
NSN 6610-01-348-5719
NSN 6610-01-206-5278
NSN 6150-01-381-7298
NSN 7035-01-363-4540
NSN 5910-00-281-2449
NSN 5905-00-275-0361