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 5999-01-471-3143
NSN 5895-00-019-2705
NSN 6685-00-156-3054
NSN 5996-00-806-1566
NSN 6135-00-209-6918
NSN 7035-01-441-0942
NSN 6110-00-960-7341
NSN 5895-01-435-5497
NSN 5910-01-126-9665
NSN 5895-01-163-3669
NSN 5920-01-623-0388
NSN 5935-01-050-0644