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 5975-00-859-2180
NSN 5960-01-056-4982
NSN 5915-00-421-4762
NSN 5915-01-596-0593
NSN 5998-01-070-6631
NSN 7035-01-271-1643
NSN 2925-01-197-7864
NSN 7035-01-558-4567
NSN 5925-00-985-0908
NSN 5975-01-055-0254
NSN 5945-01-056-5540
NSN 5950-01-449-0943