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 5905-01-504-9495
NSN 6240-01-183-0893
NSN 5945-00-324-3216
NSN 5965-00-876-2378
NSN 5990-00-001-7588
NSN 6320-00-586-5641
NSN 6240-00-435-0433
NSN 5855-00-908-9314
NSN 5945-01-246-9700
NSN 5935-01-366-4061
NSN 5996-01-168-2746
NSN 5915-01-130-3926