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 5930-00-627-7821
NSN 6150-01-533-2551
NSN 5930-01-634-0659
NSN 6650-01-330-2617
NSN 5930-01-625-4439
NSN 6320-00-456-0836
NSN 6220-00-296-4101
NSN 5945-01-419-8781
NSN 5999-01-599-8474
NSN 5950-01-656-0827
NSN 6645-01-221-5888
NSN 6320-01-236-9562