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 5965-01-381-4879
NSN 5975-01-534-8654
NSN 5975-00-525-2331
NSN 6220-01-317-3283
NSN 6150-00-964-6267
NSN 6110-01-252-6689
NSN 6610-00-122-3743
NSN 5975-01-563-9543
NSN 5915-01-338-2992
NSN 5935-01-347-0037
NSN 6220-00-406-1773
NSN 6645-00-057-3499