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 5996-01-011-3803
NSN 6105-00-294-7431
NSN 6320-01-384-7079
NSN 5998-01-428-1842
NSN 4140-01-068-3500
NSN 6240-01-322-9387
NSN 6610-01-148-2181
NSN 6240-01-089-6149
NSN 6240-01-411-8055
NSN 5920-01-649-1420
NSN 6240-01-212-3255
NSN 6645-01-419-8768