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 5835-01-307-4512
NSN 5990-01-357-6175
NSN 6150-00-827-8469
NSN 5965-01-358-1279
NSN 5915-00-222-8186
NSN 6105-01-499-7555
NSN 5910-00-546-7524
NSN 4140-01-567-3418
NSN 6620-00-803-2346
NSN 7035-00-902-8995
NSN 5930-00-195-6108
NSN 7035-01-278-1379