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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6150-01-642-2819
NSN 6240-01-285-3793
NSN 5910-01-583-6067
NSN 5945-00-636-9934
NSN 5960-00-108-0250
NSN 5965-01-015-5885
NSN 6620-00-738-6078
NSN 5985-00-595-5392
NSN 5905-00-933-9306
NSN 6130-01-526-7079
NSN 5985-01-182-6759
NSN 6645-01-388-9648