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 6145-01-357-6288
NSN 6220-01-108-5108
NSN 4140-00-541-9077
NSN 5910-01-544-4410
NSN 5990-01-492-4837
NSN 6145-00-734-4554
NSN 6685-00-317-4319
NSN 5975-01-055-5172
NSN 5950-00-194-6797
NSN 6150-01-514-2959
NSN 5855-00-869-3635
NSN 6645-00-848-8490