A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, slotted, hexagon.
Classification: Nuts of iron or steel
NSN 6240-01-378-4417
NSN 5985-00-447-1729
NSN 5915-00-009-9975
NSN 6650-01-355-4559
NSN 5998-00-900-5882
NSN 5965-01-124-8772
NSN 5960-01-276-7836
NSN 5975-01-075-3393
NSN 4140-00-875-4552
NSN 5999-00-882-8720
NSN 5920-01-335-2755
NSN 5965-01-633-8849