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 5990-01-116-2181
NSN 5990-01-443-2931
NSN 6320-00-731-6134
NSN 6150-00-518-1402
NSN 6610-01-119-7873
NSN 6130-01-263-9771
NSN 5975-01-009-2627
NSN 5999-00-243-8340
NSN 6645-01-255-0391
NSN 5855-00-548-4742
NSN 5990-01-218-1821
NSN 6150-01-590-3568