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 6320-01-422-1212
NSN 5996-00-636-4849
NSN 6145-00-512-6675
NSN 6130-00-806-2597
NSN 6645-01-539-5922
NSN 6645-01-237-2568
NSN 6150-00-058-8669
NSN 5960-01-382-8772
NSN 6650-01-227-1632
NSN 6130-01-503-2916
NSN 5935-01-599-7696
NSN 6650-01-573-8318