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 5935-01-386-3198
NSN 5965-01-479-5620
NSN 5935-01-356-8593
NSN 5945-01-251-5023
NSN 6320-01-220-2264
NSN 5985-01-088-7337
NSN 6105-01-553-6626
NSN 5996-00-470-7762
NSN 5930-01-421-8036
NSN 7035-01-416-5910
NSN 5998-00-689-3523
NSN 5985-00-809-0522