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 4140-00-501-7833
NSN 6220-01-276-9860
NSN 5925-00-063-8997
NSN 5960-01-367-0981
NSN 5945-01-069-4991
NSN 2925-01-121-3355
NSN 5990-01-243-4233
NSN 5965-00-761-4666
NSN 5925-01-561-4264
NSN 5895-01-370-4303
NSN 5996-01-368-3290
NSN 6240-00-062-3642