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 5950-01-136-6558
NSN 6145-00-990-3003
NSN 5998-01-046-5259
NSN 6610-01-612-0157
NSN 5990-01-145-2878
NSN 6610-01-158-7311
NSN 6105-01-467-7002
NSN 7035-01-123-8723
NSN 6220-00-167-5441
NSN 4140-00-104-7323
NSN 5990-00-524-2293
NSN 5965-00-904-5694