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 5965-01-104-5102
NSN 6685-00-801-7587
NSN 5945-01-052-1876
NSN 5945-01-202-8363
NSN 5835-01-435-4139
NSN 5996-01-023-0537
NSN 5990-00-188-6111
NSN 5975-01-080-2679
NSN 5895-01-408-9913
NSN 5965-01-204-8505
NSN 2925-01-650-3412
NSN 5835-01-558-9444