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 5975-01-013-1011
NSN 5925-00-319-4212
NSN 6685-01-423-1464
NSN 6150-01-594-7807
NSN 2925-01-625-6841
NSN 5920-01-054-7230
NSN 5920-01-386-5798
NSN 5950-01-572-5670
NSN 6135-01-350-1715
NSN 6135-01-579-3534
NSN 6685-01-029-1971
NSN 5925-01-560-3968