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 6240-01-206-4809
NSN 6685-01-297-1628
NSN 6110-01-633-9660
NSN 6610-00-331-3460
NSN 5990-01-411-5930
NSN 5998-01-316-0341
NSN 4140-01-051-0421
NSN 6610-00-290-0758
NSN 5935-01-272-7859
NSN 6150-00-599-0721
NSN 5996-01-242-1661
NSN 6650-01-101-9023