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 5950-00-755-7074
NSN 5910-01-167-0331
NSN 6620-01-157-9193
NSN 6110-00-225-9021
NSN 4140-00-269-3189
NSN 5835-01-434-0790
NSN 6220-01-532-6880
NSN 5925-01-466-5271
NSN 2925-00-459-4519
NSN 5835-01-158-6878
NSN 5855-01-372-1622
NSN 5990-01-227-6526