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 5965-01-576-9309
NSN 5930-01-605-5566
NSN 6645-01-064-3711
NSN 5965-00-445-1843
NSN 5996-01-525-0960
NSN 6610-00-178-9808
NSN 6240-00-607-4303
NSN 5925-00-529-0441
NSN 6220-01-237-2488
NSN 5965-01-633-8849
NSN 5895-00-802-1575
NSN 7035-01-169-6551