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 5975-00-176-4651
NSN 5915-00-318-1356
NSN 2925-01-115-0306
NSN 6110-01-380-7594
NSN 5990-01-619-0935
NSN 6150-00-299-0763
NSN 4140-00-724-6337
NSN 4140-01-050-8096
NSN 6135-01-036-3495
NSN 6240-00-838-0157
NSN 6130-00-935-8791
NSN 6645-01-496-5694