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 5935-00-346-9654
NSN 5960-01-458-7999
NSN 6610-01-287-9814
NSN 5920-01-286-1891
NSN 6130-01-090-1214
NSN 4140-01-044-5118
NSN 5915-01-592-6372
NSN 6240-00-383-2573
NSN 5945-01-123-5414
NSN 6610-01-351-0072
NSN 5999-01-444-9852
NSN 6145-01-276-1758