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 5975-00-273-0790
NSN 5965-00-840-6542
NSN 5910-00-262-8554
NSN 2925-01-354-1752
NSN 4140-01-487-7179
NSN 6130-00-126-0392
NSN 5835-01-224-2792
NSN 5910-00-670-0396
NSN 6110-01-480-3225
NSN 5999-01-519-5914
NSN 6240-01-256-9869
NSN 5998-01-073-3054