A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, slotted, hexagon.
Classification: Nuts of iron or steel
NSN 5990-01-443-2931
NSN 5996-00-823-8487
NSN 5895-00-021-8879
NSN 6130-00-239-5988
NSN 6145-01-135-8243
NSN 5985-01-584-2407
NSN 4140-01-326-7033
NSN 4140-01-224-2847
NSN 5950-01-525-7334
NSN 5975-00-341-0338
NSN 5910-01-251-1267
NSN 5905-00-207-3946