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 6150-00-673-8380
NSN 6105-00-415-9877
NSN 5945-00-193-3584
NSN 6110-01-501-5131
NSN 5855-01-070-8084
NSN 5975-00-134-3667
NSN 5915-00-433-6985
NSN 5985-01-412-1860
NSN 5920-01-401-5315
NSN 5990-00-591-3793
NSN 5985-00-484-0882
NSN 5930-00-758-6221