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 5965-00-104-3121
NSN 5998-01-510-3435
NSN 5910-01-221-6418
NSN 6240-01-380-1121
NSN 6645-01-315-9238
NSN 6685-01-592-4098
NSN 5935-01-461-3196
NSN 6130-00-444-4871
NSN 5990-00-170-4239
NSN 5895-01-408-0999
NSN 5915-01-396-2018
NSN 6110-00-505-1671