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 6145-01-192-2087
NSN 6105-01-634-0322
NSN 5990-01-024-9659
NSN 5835-01-227-2318
NSN 5925-00-556-7923
NSN 6135-01-185-3614
NSN 5998-01-430-0013
NSN 5960-00-827-1201
NSN 6620-00-663-8962
NSN 5910-01-411-1055
NSN 5998-01-142-9608
NSN 5910-00-618-5455