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 6610-01-023-6073
NSN 5965-01-258-5662
NSN 5945-00-959-5440
NSN 5835-00-389-2816
NSN 7035-00-865-9105
NSN 6110-01-633-9660
NSN 5965-00-823-8623
NSN 5855-01-371-1010
NSN 6620-00-853-2563
NSN 6220-01-369-5528
NSN 5930-00-276-5567
NSN 5930-01-602-2604