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 5990-00-189-6649
NSN 5930-00-810-2989
NSN 5920-00-135-4930
NSN 4140-01-230-7027
NSN 6150-00-724-1598
NSN 6220-01-540-5924
NSN 5960-01-388-1988
NSN 5855-01-064-8961
NSN 6620-00-172-9222
NSN 6220-00-796-2927
NSN 5996-00-134-6538
NSN 6150-01-244-2887