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 5998-01-395-9681
NSN 5985-01-065-2709
NSN 5945-00-290-1779
NSN 5999-00-583-2661
NSN 5905-01-454-4006
NSN 6620-01-462-5196
NSN 5999-01-029-8346
NSN 6645-01-492-5304
NSN 6150-01-140-2446
NSN 5985-01-023-1675
NSN 6685-01-545-7098
NSN 4140-01-447-0025