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 6130-00-925-2303
NSN 5965-00-296-9994
NSN 6685-01-472-3614
NSN 5945-00-713-0070
NSN 5855-01-115-9014
NSN 5950-00-850-7598
NSN 6320-00-433-2773
NSN 6645-01-495-0939
NSN 7035-01-113-6492
NSN 5855-00-058-1293
NSN 6240-01-152-2662
NSN 6650-01-522-5450