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 6150-01-132-1859
NSN 6105-01-390-0395
NSN 5895-01-616-6612
NSN 6105-00-225-5387
NSN 5895-00-226-3030
NSN 6135-00-461-3590
NSN 5945-01-341-7090
NSN 5835-00-958-6231
NSN 5996-01-352-6624
NSN 5960-00-930-7848
NSN 6135-01-633-8502
NSN 6645-01-383-0106