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 6135-00-932-3136
NSN 5925-00-115-8114
NSN 6320-01-029-4220
NSN 5835-01-317-8700
NSN 5905-01-513-8705
NSN 5945-01-535-1352
NSN 6610-00-727-9918
NSN 5895-01-336-1885
NSN 6135-00-196-5267
NSN 6685-01-518-0325
NSN 5945-00-906-2424
NSN 5910-00-972-9952