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 4140-00-525-3197
NSN 5999-01-226-2467
NSN 4140-01-182-1392
NSN 5855-01-450-2333
NSN 6620-00-148-9613
NSN 5960-00-030-5485
NSN 6320-01-501-7935
NSN 6320-01-132-2746
NSN 5905-01-634-0595
NSN 5990-01-239-5878
NSN 5990-01-379-8794
NSN 5835-01-259-0859