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 5965-00-735-9315
NSN 5965-01-010-1258
NSN 7035-01-531-0468
NSN 6620-01-408-4464
NSN 6685-01-104-3708
NSN 5930-00-568-9824
NSN 6645-00-226-2270
NSN 5950-01-263-5750
NSN 5998-00-127-3358
NSN 5990-01-540-1619
NSN 6620-01-212-4298
NSN 5975-00-412-1333