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 5945-01-460-2549
NSN 5998-00-452-5406
NSN 5965-00-246-5612
NSN 6620-01-401-5356
NSN 6620-01-379-9548
NSN 5895-00-310-9774
NSN 5996-01-068-4469
NSN 5985-01-498-3445
NSN 4140-01-659-6408
NSN 5945-01-654-8032
NSN 6650-01-577-8958
NSN 5835-00-833-7080