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 2925-01-497-9381
NSN 6620-00-421-7509
NSN 5910-01-491-2763
NSN 5935-01-654-4083
NSN 5985-01-534-3118
NSN 5999-01-532-7254
NSN 6685-01-155-2667
NSN 5990-01-651-0170
NSN 5905-01-247-2222
NSN 5925-01-373-2324
NSN 5835-01-203-8295
NSN 5835-01-297-1909