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 6105-00-292-4110
NSN 5925-01-360-5605
NSN 5999-00-584-2006
NSN 5895-01-502-9873
NSN 5920-01-478-4557
NSN 5930-01-595-5311
NSN 6150-01-534-7428
NSN 5905-01-467-2675
NSN 6130-01-634-0603
NSN 6135-01-493-8375
NSN 5975-01-400-0627
NSN 6105-00-754-8146