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 5895-00-814-8462
NSN 6145-00-551-5288
NSN 5999-00-499-7771
NSN 5990-00-946-8587
NSN 2925-01-446-6523
NSN 5910-01-655-0796
NSN 5835-01-380-5086
NSN 5855-01-083-9053
NSN 5855-00-944-0949
NSN 6110-01-110-6776
NSN 5935-00-088-2724
NSN 5920-01-085-0825