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 5930-01-230-6326
NSN 6645-01-599-2311
NSN 6135-01-116-3385
NSN 6240-01-465-1355
NSN 5990-00-336-2054
NSN 6110-01-424-9889
NSN 5945-01-591-3969
NSN 6685-01-442-8552
NSN 5910-00-872-3175
NSN 5965-01-426-4979
NSN 5835-00-992-0087
NSN 6220-01-494-0572