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 4140-01-356-6126
NSN 5990-01-280-0321
NSN 5999-01-384-3532
NSN 6620-01-501-8649
NSN 2925-01-359-4027
NSN 5935-01-187-1852
NSN 5935-01-264-7344
NSN 5996-00-494-3621
NSN 5975-01-060-9629
NSN 6320-00-731-6134
NSN 5985-00-446-4107
NSN 5985-00-117-7246