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 5965-01-114-9086
NSN 6620-01-483-1138
NSN 5855-01-131-9336
NSN 5835-00-838-0707
NSN 5855-00-256-5562
NSN 6610-01-533-7458
NSN 6320-00-841-2279
NSN 5950-00-496-7193
NSN 5996-00-179-9583
NSN 6645-01-147-4603
NSN 5920-01-439-3676
NSN 5935-01-167-8190