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 5930-01-253-9695
NSN 6645-01-224-4265
NSN 4140-01-606-2704
NSN 4140-01-647-8871
NSN 5996-00-289-9847
NSN 6645-01-526-5989
NSN 6650-00-624-3686
NSN 5950-01-443-2465
NSN 6645-01-621-8564
NSN 5996-01-024-8423
NSN 6685-01-448-4056
NSN 2925-01-357-2512