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 6110-00-342-7433
NSN 2925-00-620-2496
NSN 5915-01-464-1272
NSN 6110-01-477-8302
NSN 5925-01-085-9944
NSN 6220-01-152-2637
NSN 6150-00-128-0238
NSN 7035-01-550-0760
NSN 5895-01-261-4515
NSN 6145-00-961-0775
NSN 5975-00-061-5668
NSN 5990-00-572-1419