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 5930-00-983-5488
NSN 5985-01-634-0635
NSN 5950-01-589-8105
NSN 6145-01-104-5084
NSN 5930-01-338-1855
NSN 6220-00-299-7749
NSN 5999-01-537-5706
NSN 5905-01-649-3580
NSN 5996-01-372-5063
NSN 5950-00-193-5185
NSN 5835-01-396-0640
NSN 6645-00-337-8276