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 6105-00-933-2930
NSN 5915-00-919-0012
NSN 5915-01-337-1102
NSN 6685-01-429-1279
NSN 5915-01-565-8955
NSN 6320-01-412-2973
NSN 5985-01-219-4961
NSN 5915-01-244-3616
NSN 5998-00-060-3333
NSN 5925-01-451-0518
NSN 6110-00-491-8502
NSN 2925-01-421-9665