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 5965-01-537-0023
NSN 6240-01-633-9357
NSN 6150-01-590-7812
NSN 6110-01-053-0041
NSN 5945-01-411-9732
NSN 4140-00-360-2457
NSN 5998-00-754-5186
NSN 6320-01-407-4411
NSN 5855-01-450-2333
NSN 6105-01-131-3319
NSN 5920-00-164-1147
NSN 5920-00-252-3197