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 5905-01-191-9772
NSN 5920-01-350-4101
NSN 5999-01-245-6350
NSN 5835-01-550-5094
NSN 6135-00-539-8088
NSN 6105-01-559-4579
NSN 6135-00-295-2614
NSN 5915-01-065-6263
NSN 5930-01-178-0244
NSN 5960-00-284-8927
NSN 6110-00-701-8254
NSN 4140-00-640-6608