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 6145-01-660-7640
NSN 5998-00-138-2664
NSN 7035-00-703-3535
NSN 6145-00-078-9917
NSN 6620-00-800-5579
NSN 6220-00-906-7228
NSN 5905-01-470-0356
NSN 5905-01-215-7267
NSN 7035-01-021-7956
NSN 5905-00-752-4112
NSN 5945-00-579-0243
NSN 2925-00-860-3652