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 6685-01-004-6182
NSN 5990-00-226-1152
NSN 5855-01-171-8391
NSN 2925-01-290-8208
NSN 6320-00-937-5625
NSN 5895-01-431-7349
NSN 5895-00-707-6663
NSN 4140-01-286-8507
NSN 5935-01-642-6464
NSN 5960-00-441-5147
NSN 5935-01-634-0668
NSN 5930-00-734-6138