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 5945-00-451-4840
NSN 5915-01-591-3664
NSN 5930-00-999-2076
NSN 6685-00-944-0094
NSN 6240-01-317-6644
NSN 5960-00-912-5391
NSN 6240-01-113-2396
NSN 5935-01-305-1542
NSN 6320-01-240-4637
NSN 6145-00-663-6133
NSN 5835-01-449-7511
NSN 5965-01-619-6046