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 6650-00-499-7446
NSN 5999-00-597-5054
NSN 6150-01-239-5792
NSN 6240-00-811-2777
NSN 5910-01-336-5332
NSN 5855-01-083-1027
NSN 6110-00-483-9247
NSN 5920-01-560-4200
NSN 6130-00-482-6475
NSN 6645-01-428-3576
NSN 5925-01-437-9172
NSN 5835-00-931-5568