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 6650-01-352-2979
NSN 6610-01-340-0409
NSN 6610-00-225-2829
NSN 6320-01-558-8844
NSN 5935-01-166-0991
NSN 5920-01-604-9426
NSN 6110-01-017-2491
NSN 5930-01-418-7186
NSN 5960-00-888-7218
NSN 5835-01-111-9838
NSN 5920-00-999-7324
NSN 5930-00-226-8016