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 5945-01-084-6584
NSN 5998-01-608-3737
NSN 5996-00-820-4703
NSN 6240-01-461-5966
NSN 6610-01-281-3662
NSN 6150-01-382-4153
NSN 5990-01-146-1779
NSN 6645-00-911-2999
NSN 5960-00-532-3963
NSN 5925-00-155-8463
NSN 6610-01-555-0842
NSN 6620-01-239-9564