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 5855-01-553-7473
NSN 5965-01-104-5102
NSN 6650-01-654-8017
NSN 5945-00-858-4253
NSN 6220-01-239-1391
NSN 5835-01-390-4667
NSN 6620-01-320-7656
NSN 2925-01-464-3093
NSN 4140-01-634-0330
NSN 5945-01-634-0588
NSN 5945-00-269-5375
NSN 5915-01-355-3791