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 5998-01-407-8188
NSN 5910-00-840-9470
NSN 6645-00-879-3867
NSN 6620-01-383-7519
NSN 6240-01-495-9845
NSN 5905-01-528-9209
NSN 5996-01-256-8630
NSN 5960-01-038-5637
NSN 5835-00-589-6300
NSN 5930-01-334-0198
NSN 5835-00-958-6231
NSN 5925-01-353-9106