A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 4140-00-155-8012
NSN 5998-01-105-5582
NSN 5960-01-553-4557
NSN 5905-01-282-2458
NSN 6105-01-081-0085
NSN 5835-00-904-6272
NSN 5910-00-992-2070
NSN 5855-01-532-1751
NSN 6135-01-419-5574
NSN 5930-01-657-3529
NSN 5975-01-649-3337
NSN 5975-01-381-6665