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 6320-00-194-4252
NSN 5855-01-147-6024
NSN 6685-01-350-3451
NSN 5895-00-596-8678
NSN 5855-00-930-9478
NSN 6610-01-353-9326
NSN 2925-01-197-7864
NSN 5990-00-240-6454
NSN 2925-01-347-4208
NSN 5910-01-326-4288
NSN 6135-00-100-8890
NSN 6240-01-319-8145