A nut, flat on top and bottom, having 12 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 4140-01-534-9987
NSN 5915-00-291-3736
NSN 5945-01-436-8343
NSN 6145-01-359-2378
NSN 5930-00-955-5705
NSN 5925-00-947-7450
NSN 5910-00-266-8438
NSN 6220-01-645-9417
NSN 5925-00-100-5242
NSN 6620-00-317-1947
NSN 5996-00-636-1706
NSN 7035-01-509-1959