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 5915-01-390-3462
NSN 5915-00-079-9900
NSN 5920-01-049-1275
NSN 5835-01-434-0790
NSN 4140-00-385-2925
NSN 5985-01-610-2242
NSN 6240-01-189-2367
NSN 6220-01-406-3167
NSN 6610-00-535-7722
NSN 5985-00-599-5498
NSN 5990-01-201-1698
NSN 5910-01-465-0250