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 2925-00-781-1273
NSN 5895-01-534-3743
NSN 5950-00-837-7853
NSN 7035-00-946-2642
NSN 5945-01-554-5022
NSN 6610-01-564-9103
NSN 5999-01-259-7826
NSN 6685-00-842-2458
NSN 5925-00-840-9071
NSN 5950-01-004-2503
NSN 6105-00-292-4110
NSN 5996-01-395-6608