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 5925-01-050-8410
NSN 6105-01-370-4267
NSN 5855-00-256-5562
NSN 6220-01-307-1471
NSN 6620-01-046-3648
NSN 6105-00-306-4694
NSN 5910-01-320-3950
NSN 7035-01-073-9424
NSN 6110-00-504-2441
NSN 4140-00-036-6447
NSN 5915-01-158-1576
NSN 5985-01-551-5043