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 6105-01-254-9496
NSN 6620-01-535-6925
NSN 5910-00-261-8834
NSN 5996-01-036-2497
NSN 5960-01-104-0074
NSN 5945-01-350-4132
NSN 5975-01-047-4719
NSN 6110-00-047-3774
NSN 6150-00-146-8714
NSN 5915-00-625-2285
NSN 5985-00-277-7371
NSN 5930-01-593-7310