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 6610-01-496-5161
NSN 6105-01-138-4894
NSN 6220-00-171-8638
NSN 5910-01-457-8786
NSN 5990-01-039-6284
NSN 6150-01-546-9242
NSN 5895-01-400-4153
NSN 5905-01-430-7219
NSN 6610-01-184-3210
NSN 6650-01-442-7893
NSN 6610-00-518-4919
NSN 6240-01-221-1378