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 5999-00-239-9617
NSN 6220-01-516-9214
NSN 2925-00-138-5542
NSN 5945-01-449-9156
NSN 6220-00-229-7726
NSN 5935-01-236-0536
NSN 5998-00-392-4078
NSN 5835-00-785-7921
NSN 4140-00-205-0853
NSN 6650-01-040-6971
NSN 6110-00-761-2065
NSN 6610-00-504-2839