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 5975-01-595-6748
NSN 5998-00-949-2038
NSN 5990-00-636-4218
NSN 2925-00-446-8904
NSN 5965-00-393-1294
NSN 6110-00-678-1954
NSN 5950-01-488-4891
NSN 5915-01-554-5274
NSN 6220-01-413-7964
NSN 6650-00-466-1697
NSN 6610-01-320-5688
NSN 5965-00-193-2406