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 5935-01-485-8530
NSN 5930-00-715-9621
NSN 5935-00-279-9005
NSN 4140-01-250-2600
NSN 6135-01-551-0562
NSN 5945-00-833-7745
NSN 5925-01-266-1093
NSN 5930-00-116-1396
NSN 5935-01-509-3809
NSN 5985-01-055-6084
NSN 6650-01-459-8703
NSN 5960-00-703-2027