A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. 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 6645-00-544-2578
NSN 4140-01-224-7662
NSN 5835-01-412-0344
NSN 6240-01-408-6394
NSN 5895-01-292-3584
NSN 2925-00-149-0760
NSN 5975-01-520-5557
NSN 5996-01-058-8227
NSN 5975-01-443-6701
NSN 5998-00-428-2617
NSN 6220-00-707-5044
NSN 5895-01-454-0356