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 7035-01-484-5416
NSN 4140-01-472-1736
NSN 5835-00-936-8753
NSN 4140-01-238-9219
NSN 5975-01-282-9352
NSN 6150-00-341-3860
NSN 5835-00-187-1481
NSN 6685-01-055-6057
NSN 6620-01-483-1138
NSN 6610-01-175-3500
NSN 6645-00-400-7955
NSN 6685-01-128-3052