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 6650-01-136-1520
NSN 5999-01-258-9665
NSN 5975-00-835-0393
NSN 6620-01-157-9267
NSN 5965-00-879-7287
NSN 6130-01-633-8450
NSN 5935-01-237-3806
NSN 6145-01-099-8035
NSN 6650-01-102-7847
NSN 5930-01-601-5955
NSN 6130-01-489-0295
NSN 6620-00-253-6329