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 5999-01-640-8669
NSN 5855-01-154-1402
NSN 5935-00-846-1942
NSN 6145-00-174-9344
NSN 5999-01-297-8982
NSN 6240-01-168-6185
NSN 5960-01-347-0751
NSN 5998-01-302-2428
NSN 5998-01-648-2656
NSN 6110-00-410-2576
NSN 2925-00-246-3077
NSN 6645-01-100-3296