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: Nuts of iron or steel
NSN 4140-00-688-7522
NSN 6650-01-441-3624
NSN 5975-01-300-4677
NSN 6240-01-530-7485
NSN 5998-00-233-6401
NSN 5920-01-563-7675
NSN 6150-01-591-5194
NSN 5945-01-359-6337
NSN 6110-01-379-2401
NSN 4140-00-679-3899
NSN 5895-01-023-3227
NSN 2925-00-328-2018