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 6130-00-832-5721
NSN 6135-00-284-1406
NSN 4140-01-596-7716
NSN 6110-01-235-2913
NSN 5915-00-276-8332
NSN 6650-00-205-6282
NSN 6645-00-183-8812
NSN 5965-00-289-6280
NSN 5895-01-040-2305
NSN 5835-01-069-0393
NSN 5960-01-609-6565
NSN 5905-01-474-5173