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 5996-01-342-3310
NSN 6240-01-406-5345
NSN 6145-01-345-4732
NSN 5945-00-831-0382
NSN 5935-01-401-5324
NSN 7035-00-803-3056
NSN 6145-01-174-4636
NSN 5935-01-137-9146
NSN 7035-01-550-0760
NSN 5999-01-150-1804
NSN 6105-01-152-2800
NSN 5985-00-600-6388