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 6105-00-972-6423
NSN 6320-01-177-3192
NSN 5935-00-815-6230
NSN 6150-01-487-4040
NSN 5925-00-107-4234
NSN 5975-00-954-4714
NSN 6650-01-116-5856
NSN 6145-00-119-8201
NSN 5920-00-113-6041
NSN 5965-00-182-7928
NSN 5985-00-659-9509
NSN 5910-01-579-6633