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 6145-00-643-2492
NSN 6610-01-546-9067
NSN 6150-01-441-2254
NSN 4140-01-566-5530
NSN 5905-01-573-0304
NSN 6320-01-262-8642
NSN 5965-00-843-9957
NSN 5965-00-067-0290
NSN 5996-00-876-6631
NSN 5960-01-578-5537
NSN 5930-00-104-5366
NSN 5990-00-419-0236