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 5935-01-267-1340
NSN 5990-00-402-7721
NSN 6110-00-581-4445
NSN 6145-01-337-2133
NSN 6685-00-526-9433
NSN 6685-00-753-7429
NSN 5935-01-435-6574
NSN 5925-01-210-3889
NSN 5945-01-121-1589
NSN 6645-01-370-3818
NSN 5935-01-548-8943
NSN 5960-00-833-7438