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 5910-01-464-2879
NSN 6110-01-025-1286
NSN 5965-00-171-1265
NSN 6135-01-020-3805
NSN 6650-01-183-0711
NSN 2925-00-660-8131
NSN 5855-01-594-7809
NSN 6620-00-425-7475
NSN 5910-01-210-2692
NSN 5996-01-410-6984
NSN 5930-01-476-7248
NSN 6650-01-577-5309