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 6150-01-384-3112
NSN 5990-01-504-9265
NSN 6610-01-510-2302
NSN 5996-01-266-8706
NSN 5950-01-593-3875
NSN 6650-00-913-8405
NSN 5895-00-421-9850
NSN 6145-00-466-4068
NSN 5925-01-647-4496
NSN 6240-00-239-0159
NSN 5855-01-395-7429
NSN 5965-01-566-2744