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.)
NSN 5965-00-110-3330
NSN 6130-01-288-5467
NSN 6105-01-228-2328
NSN 5905-01-065-0696
NSN 5835-01-408-7576
NSN 5930-01-434-5093
NSN 5950-01-025-5826
NSN 5950-01-565-3833
NSN 5935-01-522-2194
NSN 5910-00-960-4441
NSN 5950-01-128-2970
NSN 5915-00-215-6491