Double hexagon
A nut on which has been assembled a nonremovable washer. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 5975-01-293-7802
NSN 6620-00-553-8854
NSN 6320-01-158-2177
NSN 5950-01-523-9173
NSN 5950-00-846-3744
NSN 5999-00-592-4235
NSN 6610-00-594-6372
NSN 5930-01-128-7289
NSN 5975-01-116-8979
NSN 6145-01-581-4128
NSN 5996-01-367-6557
NSN 6650-01-444-6364