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 5990-01-579-2711
NSN 6145-01-059-8365
NSN 6105-01-270-3170
NSN 6650-01-217-7481
NSN 5905-01-107-3160
NSN 6150-01-449-3165
NSN 5925-00-660-3892
NSN 6240-00-146-9322
NSN 5960-01-503-0362
NSN 6105-00-439-4082
NSN 5998-00-497-6352
NSN 5990-01-128-7599