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 6240-00-899-6990
NSN 4140-00-241-0065
NSN 5920-00-094-0655
NSN 6145-00-722-9700
NSN 5960-00-136-7046
NSN 5990-01-326-2677
NSN 6610-01-374-0569
NSN 5910-00-905-3980
NSN 5999-01-458-7882
NSN 5998-01-155-9433
NSN 6220-00-358-9580
NSN 5996-01-103-9092