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 5930-00-269-4996
NSN 6110-01-633-9660
NSN 5930-00-116-6579
NSN 5910-01-124-0096
NSN 6150-01-420-9222
NSN 6105-00-168-6556
NSN 5985-01-587-8892
NSN 6105-01-376-4383
NSN 6220-01-469-7753
NSN 6145-01-334-2877
NSN 5960-01-605-9921
NSN 5945-00-543-1980