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 5855-00-631-4565
NSN 5920-01-337-3823
NSN 5998-00-359-3652
NSN 6130-01-657-8896
NSN 6685-01-227-5471
NSN 6610-01-187-1748
NSN 6610-00-079-1508
NSN 5855-01-420-4988
NSN 5915-01-556-9188
NSN 6150-00-233-5833
NSN 5999-01-606-2594
NSN 6150-01-204-7779