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 5990-01-208-4322
NSN 5985-01-419-0597
NSN 6685-01-540-8550
NSN 6320-01-556-2011
NSN 5920-01-268-6399
NSN 5920-00-998-9528
NSN 5930-00-164-5274
NSN 2925-01-061-4012
NSN 6620-01-365-1499
NSN 4140-01-142-3192
NSN 5985-01-146-5330
NSN 5960-01-352-0451