A nut on which has been assembled a nonremovable washer. An integral feature is incorporated for locking on the threads of a mating member.
NSN 6135-01-119-0720
NSN 6620-01-611-7907
NSN 5905-01-487-8482
NSN 5965-00-187-5523
NSN 6320-00-977-3930
NSN 5855-01-031-4729
NSN 5950-01-561-2619
NSN 5975-01-484-0587
NSN 5960-00-469-4654
NSN 6620-01-391-7331
NSN 6105-01-182-4084
NSN 5996-01-153-2359