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 5960-00-929-1276
NSN 6135-01-383-0151
NSN 7035-00-142-9076
NSN 6620-01-242-9247
NSN 6130-01-004-3566
NSN 5935-01-200-6669
NSN 5990-01-272-4091
NSN 5905-01-487-5615
NSN 7035-01-618-1438
NSN 4140-00-938-8664
NSN 5855-00-411-8688
NSN 5910-01-287-9681