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 5935-01-343-8441
NSN 6610-00-618-6192
NSN 5990-01-478-8638
NSN 6145-01-560-8915
NSN 6145-01-463-9205
NSN 6320-00-224-3538
NSN 5925-01-174-1562
NSN 5920-01-462-5065
NSN 4140-00-833-1382
NSN 5960-01-340-4487
NSN 6650-00-012-2430
NSN 6220-01-085-2797