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 5965-01-383-7235
NSN 6220-01-609-9550
NSN 6320-00-405-2348
NSN 6150-01-138-7852
NSN 6240-01-386-8408
NSN 5920-01-580-0777
NSN 5925-01-607-6279
NSN 5835-01-339-0542
NSN 4140-01-327-2844
NSN 5998-01-174-7714
NSN 5985-01-082-9618
NSN 6150-01-117-9510