Dyed brown
A nut having a flat bearing surface and 6 flat sides with slots in its upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, castellated, hexagon.
Classification: Nuts of iron or steel
NSN 5935-01-219-0063
NSN 5990-01-626-3840
NSN 6110-00-727-0799
NSN 6135-01-086-0809
NSN 5910-00-431-6467
NSN 6105-01-442-7801
NSN 5996-01-577-9696
NSN 5855-00-149-0766
NSN 5950-01-152-2622
NSN 5965-01-519-7056
NSN 5975-00-050-9938
NSN 6220-00-960-7591