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 5985-00-755-8688
NSN 5996-01-227-8877
NSN 6320-01-452-2394
NSN 5855-01-020-7982
NSN 6105-00-498-0059
NSN 6685-01-109-1229
NSN 6645-01-133-8359
NSN 5945-01-462-1555
NSN 5925-00-198-3689
NSN 5999-00-161-0620
NSN 5998-01-560-1707
NSN 5990-00-936-3947