Dyed brown
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 5925-01-249-9066
NSN 6620-01-607-5738
NSN 6645-01-094-8917
NSN 5855-01-348-6690
NSN 6650-01-506-0386
NSN 5835-01-599-1876
NSN 6130-01-571-5134
NSN 5996-01-155-8924
NSN 5895-01-485-0256
NSN 2925-00-118-4887
NSN 5999-01-424-3782
NSN 6620-01-327-3011