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 5855-01-235-5491
NSN 5925-00-731-7710
NSN 7035-01-542-3276
NSN 5895-01-406-2638
NSN 6145-01-062-4200
NSN 4140-00-143-9301
NSN 5915-00-557-8178
NSN 6150-00-570-0552
NSN 5930-01-149-5112
NSN 6620-01-484-1303
NSN 6105-00-351-8009
NSN 6110-01-397-8803