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 6620-00-111-4506
NSN 6240-00-185-8367
NSN 5920-00-683-7883
NSN 5990-01-322-9781
NSN 5855-00-149-0766
NSN 6150-01-141-9210
NSN 4140-01-362-9957
NSN 5905-01-453-3399
NSN 5935-01-286-5539
NSN 5920-01-432-2229
NSN 6620-01-397-4131
NSN 5975-00-316-2539