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 5905-00-144-3585
NSN 6320-01-498-4954
NSN 5975-00-878-2279
NSN 5965-00-964-1756
NSN 5905-01-522-5137
NSN 5855-01-398-0090
NSN 6320-01-352-5653
NSN 6150-01-492-9843
NSN 5996-01-521-9670
NSN 5999-01-231-5751
NSN 6135-00-835-2330
NSN 7035-01-616-5454