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 6135-01-310-9866
NSN 5960-01-380-0885
NSN 6135-01-045-1504
NSN 6110-01-633-9660
NSN 6645-01-454-0652
NSN 5925-01-184-0633
NSN 5998-00-785-7911
NSN 5910-01-415-6331
NSN 5910-01-191-9829
NSN 6620-00-613-3023
NSN 5998-01-472-5072
NSN 6320-01-526-5534