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 4140-00-910-0295
NSN 5910-01-393-0754
NSN 6150-00-404-0469
NSN 5950-01-422-2408
NSN 6645-00-274-5670
NSN 6220-01-481-3827
NSN 6320-01-433-1210
NSN 6130-00-202-0027
NSN 5915-00-173-3404
NSN 4140-01-634-0330
NSN 6610-01-240-9690
NSN 6220-01-398-2481