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 4140-01-278-1314
NSN 6650-01-521-2077
NSN 6105-01-463-8557
NSN 4140-01-039-8885
NSN 5910-00-193-8013
NSN 5990-01-633-9503
NSN 5945-01-218-0809
NSN 5960-01-284-4118
NSN 5960-00-509-4549
NSN 6650-01-030-0238
NSN 5950-00-347-5729
NSN 6105-01-425-1718