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 6105-00-442-2309
NSN 5925-01-468-6567
NSN 5935-00-275-7862
NSN 6110-01-606-1250
NSN 6320-01-304-3639
NSN 5905-01-045-2860
NSN 6685-00-305-8484
NSN 6110-01-322-8585
NSN 5895-01-088-9526
NSN 5998-00-679-4001
NSN 6130-01-327-3261
NSN 6135-00-767-0331