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 5945-01-227-5095
NSN 6130-01-235-2824
NSN 6145-00-862-7069
NSN 5985-01-278-9385
NSN 6105-00-553-8943
NSN 5920-00-116-4959
NSN 6240-01-434-2361
NSN 6105-00-116-1249
NSN 7035-00-946-2642
NSN 6610-01-091-8458
NSN 5945-01-476-7347
NSN 6620-01-493-6988