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 5895-00-918-3753
NSN 5915-01-224-7044
NSN 5910-01-644-9732
NSN 5998-00-959-4539
NSN 6110-01-491-5872
NSN 7035-01-247-6256
NSN 5920-01-122-6303
NSN 6150-01-270-8237
NSN 2925-01-041-8201
NSN 5999-00-514-2142
NSN 5925-01-524-2585
NSN 6135-01-422-1440