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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5960-01-583-4737
NSN 5835-01-558-9444
NSN 6320-00-218-6105
NSN 6650-00-195-7519
NSN 2925-01-543-5571
NSN 2925-00-698-4882
NSN 5855-01-656-2386
NSN 4140-00-235-6377
NSN 5895-01-360-8915
NSN 5999-01-399-5424
NSN 6610-00-945-3112
NSN 5945-01-480-7222