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 5925-01-058-6079
NSN 5920-00-185-5801
NSN 5855-00-908-9314
NSN 5990-00-636-4218
NSN 5960-00-597-2680
NSN 6620-01-088-1272
NSN 5998-00-777-4417
NSN 6610-00-276-8919
NSN 6650-01-420-6572
NSN 6130-01-379-2650
NSN 2925-01-391-1540
NSN 5945-00-688-3977