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 7035-00-020-2227
NSN 6620-00-915-0868
NSN 5895-01-112-3334
NSN 6130-00-198-4997
NSN 5990-00-594-7291
NSN 5996-01-068-4761
NSN 6240-00-989-4398
NSN 6620-00-613-3023
NSN 5960-00-226-8443
NSN 6220-00-510-7899
NSN 7035-01-560-2623
NSN 5985-00-892-3862