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 6150-00-283-3884
NSN 5985-01-624-3331
NSN 6130-00-962-7522
NSN 5895-01-567-1604
NSN 6650-01-327-4122
NSN 6105-01-519-0855
NSN 5930-00-434-6136
NSN 6105-01-451-4327
NSN 6650-01-444-2152
NSN 5999-01-323-7053
NSN 6130-01-186-4857
NSN 6135-01-029-9315