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 6610-00-822-0431
NSN 5950-01-370-4496
NSN 5975-00-389-6958
NSN 6135-01-633-2066
NSN 5920-00-803-3290
NSN 4140-01-198-9990
NSN 6110-01-266-2847
NSN 5930-00-432-3000
NSN 6320-00-779-5923
NSN 6620-01-605-2590
NSN 5855-00-256-5562
NSN 6130-00-587-7062