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 5965-01-517-8198
NSN 5975-01-077-8675
NSN 5950-01-528-0208
NSN 5930-01-199-7666
NSN 6685-00-362-6370
NSN 5965-00-912-9318
NSN 5975-00-106-6145
NSN 5999-01-018-1071
NSN 5945-01-271-3032
NSN 6105-01-334-0698
NSN 6130-00-768-2863
NSN 5935-01-325-3548