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 5975-00-828-3505
NSN 5945-00-125-1948
NSN 5835-01-180-9441
NSN 5915-00-159-7349
NSN 5910-01-013-8957
NSN 5835-01-504-0837
NSN 6685-01-306-4747
NSN 5905-01-365-4783
NSN 6320-00-925-0558
NSN 6650-01-542-1858
NSN 5945-01-546-5123
NSN 5945-01-204-3507