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 5975-01-050-9018
NSN 5965-00-908-1402
NSN 5996-01-591-8882
NSN 5996-01-633-7979
NSN 5925-01-137-2234
NSN 6240-00-643-4532
NSN 2925-01-359-9818
NSN 5905-01-362-5596
NSN 6145-01-047-1149
NSN 5920-01-508-4161
NSN 5975-01-200-7710
NSN 5998-01-267-0005