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 5945-00-725-9325
NSN 5996-01-200-7282
NSN 5930-00-724-9940
NSN 5920-00-097-7647
NSN 6135-00-835-2330
NSN 6130-01-627-6262
NSN 5930-01-431-9331
NSN 5950-01-232-1299
NSN 5950-00-483-4009
NSN 5915-01-467-0113
NSN 6150-01-382-9691
NSN 5925-00-764-8349