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 2925-00-139-0720
NSN 6645-01-607-7931
NSN 5990-01-512-5478
NSN 5920-00-501-7834
NSN 5910-01-616-0611
NSN 4140-01-055-6355
NSN 5965-01-150-6315
NSN 6145-00-080-3421
NSN 6110-01-142-2550
NSN 6320-01-067-0474
NSN 5910-00-350-3539
NSN 5998-01-325-1529