A locking device with two keys spaced approximately 180 degrees center to center and protruding from the seating surface of the ring. When installed the keys mate with companion keyways in the external threads of screw thread inserts, locked-in studs, or similar type items, and cut through sufficient threads of the parent material tapped hole to provide a positive lock between the threaded bodies.
NSN 5998-00-684-8186
NSN 6650-01-352-0424
NSN 6105-00-482-6325
NSN 4140-00-372-2947
NSN 5950-00-450-2395
NSN 6610-01-101-5909
NSN 5920-01-166-7421
NSN 5930-01-055-5525
NSN 6110-01-475-8275
NSN 5935-01-081-0052
NSN 6650-00-518-6318
NSN 5975-01-360-6120