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 5920-01-462-5904
NSN 2925-00-416-2894
NSN 6110-01-616-5289
NSN 5925-01-175-8204
NSN 5905-01-278-7098
NSN 5925-01-085-6444
NSN 2925-01-513-9114
NSN 6320-01-519-8767
NSN 6135-01-383-0151
NSN 5996-01-218-8540
NSN 5960-01-495-0859
NSN 4140-01-323-8629