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 5960-00-829-6192
NSN 6620-01-207-0667
NSN 5999-01-098-4256
NSN 5905-00-023-2553
NSN 6110-01-623-4696
NSN 6650-01-371-5886
NSN 6110-00-390-8115
NSN 5920-01-633-3751
NSN 5950-00-788-1633
NSN 6320-01-172-6103
NSN 5950-01-154-5434
NSN 5895-01-502-8387