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 5998-01-487-3127
NSN 6650-01-525-0958
NSN 6130-01-263-1450
NSN 5925-01-089-3731
NSN 2925-01-062-2660
NSN 6150-01-457-0493
NSN 6105-00-583-9958
NSN 5835-00-074-3700
NSN 5945-01-315-4424
NSN 5930-01-399-8713
NSN 5910-01-141-3819
NSN 5855-00-631-4565