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 5975-00-946-6200
NSN 5945-00-233-6790
NSN 5985-00-190-5716
NSN 6135-01-222-0703
NSN 4140-01-419-5505
NSN 5835-00-581-9460
NSN 6650-00-331-2232
NSN 5975-00-008-7834
NSN 6105-01-479-8988
NSN 6240-01-030-1183
NSN 6240-01-442-0435
NSN 5945-00-606-7217