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 6610-00-556-1870
NSN 6650-00-014-2991
NSN 7035-01-229-0941
NSN 6110-01-038-6709
NSN 4140-00-832-0459
NSN 2925-00-902-3881
NSN 6645-01-428-3576
NSN 5895-00-935-8183
NSN 5960-01-369-8666
NSN 5998-00-064-2144
NSN 6220-01-078-1625
NSN 5985-01-575-4905