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 4140-01-321-7853
NSN 6130-01-364-1751
NSN 6320-00-790-4844
NSN 5996-01-295-7854
NSN 5835-01-468-0579
NSN 5965-01-544-3081
NSN 5915-00-086-6950
NSN 6610-01-168-7943
NSN 6240-00-905-5029
NSN 5965-00-185-9687
NSN 5996-01-633-0192
NSN 5998-01-198-2203