A nut, flat on top and bottom, having 4 flat sides. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5855-00-149-0766
NSN 5920-01-620-3853
NSN 6110-01-440-7323
NSN 6610-01-162-4882
NSN 6685-00-583-2473
NSN 6610-01-531-4816
NSN 6645-00-935-7046
NSN 5920-01-497-9528
NSN 6645-01-301-3066
NSN 5855-01-365-4287
NSN 6110-00-959-2100
NSN 6685-01-619-1990