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 6610-01-302-6347
NSN 5920-00-881-6584
NSN 5835-01-012-1436
NSN 6130-00-249-7891
NSN 5965-00-285-0745
NSN 6320-00-823-2015
NSN 6150-01-578-6358
NSN 5905-00-093-1950
NSN 5950-00-864-5542
NSN 2925-00-796-5414
NSN 5996-01-170-1915
NSN 5975-01-129-5739