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 6240-01-258-6298
NSN 7035-01-495-2253
NSN 5855-01-622-3416
NSN 6650-01-350-5578
NSN 6240-00-155-3447
NSN 6110-01-364-7168
NSN 6145-01-533-7376
NSN 5925-01-218-6427
NSN 5990-00-081-5370
NSN 5996-01-435-7886
NSN 5925-00-227-8557
NSN 6645-01-277-9337