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 5985-01-090-0098
NSN 5999-01-591-8294
NSN 6110-00-346-3655
NSN 5996-01-049-5179
NSN 5915-01-050-6622
NSN 5930-01-502-7898
NSN 2925-01-139-5144
NSN 5910-01-657-4685
NSN 6110-01-381-5311
NSN 5998-00-160-9866
NSN 5855-01-291-1126
NSN 5895-01-158-2247