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 6620-00-057-2764
NSN 5920-00-493-8307
NSN 5915-00-250-7912
NSN 6610-01-200-6861
NSN 5996-00-826-8837
NSN 6320-00-110-8005
NSN 5915-01-329-1423
NSN 5925-01-420-2890
NSN 6650-01-206-8718
NSN 2925-01-156-9570
NSN 5996-01-546-9692
NSN 5910-01-070-8900