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 5945-01-623-3948
NSN 5920-01-040-0425
NSN 5930-01-462-1225
NSN 6130-01-321-7487
NSN 6105-00-456-1433
NSN 6220-00-758-1788
NSN 5998-00-842-0866
NSN 5855-01-389-8884
NSN 5835-00-572-7445
NSN 5965-00-524-5521
NSN 5990-00-998-6193
NSN 6650-00-078-5773