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 5945-01-327-7762
NSN 5990-00-724-8812
NSN 6685-01-268-5741
NSN 6105-01-023-7887
NSN 5855-01-400-1590
NSN 5895-01-349-2682
NSN 5965-01-323-7225
NSN 6130-00-877-5743
NSN 6150-01-103-3010
NSN 5985-00-221-5566
NSN 6240-00-824-4678
NSN 5915-00-115-2256