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 5975-01-202-6884
NSN 5945-00-078-2265
NSN 5835-01-606-8768
NSN 6685-01-597-4246
NSN 5930-01-261-6790
NSN 6685-00-594-4796
NSN 6150-01-266-5163
NSN 5895-01-422-3136
NSN 6130-00-061-7486
NSN 5910-01-112-2444
NSN 6610-01-537-0816
NSN 5925-00-478-7352