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 6110-01-505-0165
NSN 5975-00-481-3681
NSN 5975-01-590-0170
NSN 5915-00-895-7230
NSN 5915-00-336-6481
NSN 5905-01-604-7681
NSN 6620-01-220-7105
NSN 6645-00-097-4613
NSN 5915-01-588-5998
NSN 6610-01-487-8879
NSN 6110-00-323-9816
NSN 6645-01-338-9152