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 5950-00-681-9668
NSN 6105-00-196-0061
NSN 5895-01-513-2829
NSN 6145-00-854-1892
NSN 5925-00-759-8005
NSN 5975-01-112-2151
NSN 6110-00-663-4054
NSN 5930-01-536-9457
NSN 6610-01-633-8931
NSN 5920-01-634-0250
NSN 6220-01-467-9608
NSN 5905-01-239-6673