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 5895-01-625-5184
NSN 5999-01-492-6370
NSN 5985-01-421-7570
NSN 5915-00-180-1378
NSN 7035-01-209-6325
NSN 6650-00-256-9059
NSN 5910-00-263-7884
NSN 6220-00-586-6645
NSN 5935-01-507-9296
NSN 5910-01-579-6633
NSN 6220-00-846-0140
NSN 6650-01-525-7370