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 5905-01-642-4201
NSN 5945-01-233-9611
NSN 5999-01-341-3685
NSN 5996-01-067-8716
NSN 6130-00-279-5066
NSN 6320-01-194-1253
NSN 6220-01-621-5007
NSN 5965-00-857-6622
NSN 5935-01-351-2811
NSN 5920-00-066-6885
NSN 6645-01-150-2039
NSN 5965-01-660-9081