A series, thin wall
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 5935-01-041-0749
NSN 6620-00-517-6209
NSN 5835-01-616-6131
NSN 5855-01-100-3272
NSN 7035-01-293-3431
NSN 4140-00-318-7427
NSN 5905-00-055-6140
NSN 5950-01-567-9158
NSN 6145-01-443-2958
NSN 5920-01-151-2773
NSN 5985-01-367-2220
NSN 6110-01-363-8818