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 6130-01-123-9041
NSN 6110-01-196-9565
NSN 6320-01-365-2701
NSN 6150-01-317-6847
NSN 5975-01-386-3061
NSN 5895-00-491-1296
NSN 6110-01-602-9353
NSN 6145-01-049-2360
NSN 6145-01-012-2098
NSN 7035-01-322-8180
NSN 5855-01-251-7721
NSN 5999-01-271-3405