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 5965-01-480-3096
NSN 5925-01-574-6322
NSN 5985-01-527-6368
NSN 5930-00-961-7228
NSN 5998-01-112-3974
NSN 6610-00-060-9506
NSN 5915-01-643-8429
NSN 6145-01-447-6846
NSN 7035-01-119-6271
NSN 5975-00-063-3736
NSN 5905-01-633-2777
NSN 6145-01-380-6071