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 5998-00-565-6123
NSN 5895-00-828-3994
NSN 5999-01-529-9689
NSN 6220-01-616-5737
NSN 5895-01-566-8248
NSN 5945-01-087-8277
NSN 5999-01-426-6632
NSN 6620-00-054-4778
NSN 6130-00-649-6918
NSN 5945-00-006-2246
NSN 5915-01-109-1873
NSN 5945-01-406-4352