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 6145-01-583-9733
NSN 5965-00-393-1294
NSN 5895-01-168-9754
NSN 5965-01-546-3696
NSN 5945-01-030-1261
NSN 5895-01-240-0569
NSN 6650-01-144-4508
NSN 5996-01-399-2319
NSN 5930-01-441-1932
NSN 5960-00-322-8562
NSN 5950-00-720-2706
NSN 5835-01-461-8184