A nut having 1 convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. See also nut (1), plain, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 6645-01-542-3672
NSN 6130-01-442-0829
NSN 5930-00-100-0163
NSN 5998-00-779-3400
NSN 2925-00-309-4884
NSN 5998-01-350-3208
NSN 5965-01-463-2815
NSN 5965-01-594-9290
NSN 5996-00-703-1004
NSN 6650-01-327-3068
NSN 7035-01-296-4737
NSN 5920-00-256-9367