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 6650-01-599-8101
NSN 5935-00-186-2261
NSN 5895-00-137-8031
NSN 5998-00-087-4776
NSN 6620-01-661-1694
NSN 6145-01-622-3613
NSN 5835-01-397-8801
NSN 4140-00-783-7754
NSN 5930-01-144-8024
NSN 5855-01-003-0848
NSN 5999-01-044-3931
NSN 6610-01-585-6864