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 6620-00-780-7786
NSN 5905-01-436-6390
NSN 5905-01-184-1493
NSN 6320-00-908-6841
NSN 6685-00-346-8803
NSN 5996-01-581-2090
NSN 6240-01-095-9510
NSN 5835-01-416-6455
NSN 6620-01-415-5803
NSN 2925-00-115-5857
NSN 5835-00-821-8555
NSN 5998-00-436-7932