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 5985-00-065-2155
NSN 7035-00-225-6499
NSN 5945-01-048-9016
NSN 5905-01-219-5927
NSN 6135-00-944-6953
NSN 7035-00-230-4338
NSN 7035-01-302-1797
NSN 6145-01-104-3358
NSN 2925-01-011-8732
NSN 5930-01-201-6021
NSN 5975-00-958-7462
NSN 5960-00-423-7842