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 5945-00-648-0552
NSN 6320-01-006-6138
NSN 5895-01-370-4216
NSN 5965-01-580-0938
NSN 6135-01-185-3614
NSN 5990-01-382-5364
NSN 6645-01-433-1398
NSN 5930-01-107-6721
NSN 5925-00-050-8501
NSN 5895-01-634-0630
NSN 6220-01-409-1585
NSN 5905-00-809-8567