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 6650-01-171-2838
NSN 5855-01-147-6024
NSN 6105-00-481-0781
NSN 5945-00-442-4276
NSN 5965-00-844-9778
NSN 5915-01-442-6711
NSN 5999-01-235-3322
NSN 5835-00-905-7165
NSN 5999-01-492-6749
NSN 6650-01-629-0096
NSN 5960-01-390-5961
NSN 5915-00-587-8811