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 6610-01-487-4626
NSN 6135-01-364-0667
NSN 5950-00-534-6396
NSN 5915-01-102-1601
NSN 6110-01-054-2354
NSN 6220-01-387-4250
NSN 6130-01-626-0159
NSN 5915-01-370-3505
NSN 6220-01-181-1154
NSN 6650-01-456-1225
NSN 6240-01-644-5022
NSN 5996-01-591-3756