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 5930-01-065-3011
NSN 5895-01-534-0706
NSN 5950-01-266-0201
NSN 5905-01-075-6934
NSN 5910-00-954-1913
NSN 6105-01-151-9354
NSN 5975-00-501-8058
NSN 5905-01-417-2987
NSN 5960-01-350-4288
NSN 6135-01-462-6040
NSN 6685-00-435-5630
NSN 6150-01-370-4630