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 5935-01-294-0291
NSN 5975-01-014-9001
NSN 5855-00-114-4954
NSN 5985-00-731-1856
NSN 6685-00-100-4753
NSN 5915-01-227-9926
NSN 2925-00-824-2186
NSN 6610-01-541-5034
NSN 5925-01-336-8448
NSN 5945-00-491-8253
NSN 7035-00-535-8109
NSN 6150-01-141-4998