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 6620-00-349-4703
NSN 5999-01-442-0653
NSN 2925-00-246-3077
NSN 6620-00-827-1611
NSN 6130-01-225-6715
NSN 5996-01-088-7074
NSN 6685-00-054-3956
NSN 6145-01-171-4011
NSN 6685-00-243-5367
NSN 5965-00-452-0967
NSN 5985-01-282-3731
NSN 5945-00-245-3601