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 5895-01-090-0567
NSN 4140-01-173-7869
NSN 5998-00-832-5519
NSN 5975-01-443-3292
NSN 2925-00-614-1758
NSN 5855-00-079-2370
NSN 5910-01-304-7145
NSN 6110-01-339-1656
NSN 5915-00-553-8755
NSN 6610-00-883-5160
NSN 5855-01-020-7982
NSN 5945-00-558-9155