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 5855-00-256-5562
NSN 5998-01-414-6462
NSN 5975-01-425-2613
NSN 6145-00-230-0299
NSN 6135-00-152-8729
NSN 6240-00-101-0008
NSN 5945-01-364-8496
NSN 5935-01-534-6895
NSN 7035-01-042-5308
NSN 5975-00-263-3379
NSN 5915-01-221-0363
NSN 6220-00-116-8464