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 5990-01-137-8722
NSN 5975-00-153-7971
NSN 5920-00-156-0840
NSN 5930-00-305-2750
NSN 6150-01-126-2513
NSN 5930-01-439-9922
NSN 4140-01-415-5595
NSN 5895-00-171-0412
NSN 5835-01-013-1838
NSN 6620-01-149-2842
NSN 5998-00-282-2097
NSN 6650-00-901-1501