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.)
NSN 6685-01-077-2326
NSN 5998-01-227-1827
NSN 5965-01-036-9945
NSN 5998-00-233-2372
NSN 6130-00-014-2711
NSN 5965-01-391-8104
NSN 6240-01-323-5386
NSN 6145-00-357-5010
NSN 5935-01-642-3564
NSN 5950-01-011-3423
NSN 6105-01-611-4382
NSN 6220-01-253-0380