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 6105-00-862-4951
NSN 5960-00-250-7942
NSN 6240-01-444-1673
NSN 6105-01-523-7814
NSN 5930-01-308-7874
NSN 6145-01-320-7264
NSN 5965-00-285-0745
NSN 5910-01-437-8609
NSN 6610-00-675-9811
NSN 6320-01-072-2073
NSN 6105-00-419-3174
NSN 5835-01-447-2544