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 6105-01-118-1412
NSN 5975-00-836-3376
NSN 5999-00-358-1933
NSN 6150-01-437-5552
NSN 6145-00-681-1585
NSN 6685-01-219-1013
NSN 5950-01-305-8141
NSN 5935-00-413-5453
NSN 6645-00-369-4410
NSN 5895-00-661-1773
NSN 6240-01-495-8756
NSN 5945-01-603-5850