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 5945-00-536-0850
NSN 5998-01-428-7824
NSN 5930-01-380-4584
NSN 5855-00-156-5489
NSN 5950-01-284-9063
NSN 5996-01-131-8861
NSN 5895-01-205-6202
NSN 5996-00-202-6576
NSN 5960-01-495-0859
NSN 5999-01-435-6483
NSN 5835-01-200-7153
NSN 6145-00-338-5645