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 5960-00-960-6805
NSN 6130-00-887-1300
NSN 4140-01-219-3096
NSN 6220-01-265-1077
NSN 5999-00-270-0394
NSN 5915-01-338-0771
NSN 7035-01-474-2768
NSN 5960-01-054-9639
NSN 5996-01-564-8046
NSN 5855-01-444-9182
NSN 6610-01-246-4164
NSN 5935-00-101-7818