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 6240-01-340-2238
NSN 5950-01-461-9565
NSN 5990-01-400-3299
NSN 5905-00-156-2982
NSN 6220-01-215-2179
NSN 6645-00-406-2564
NSN 5895-01-010-5596
NSN 5960-00-476-4750
NSN 5990-01-516-9665
NSN 5998-00-862-7299
NSN 5910-01-280-0279
NSN 5999-00-245-2104