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 5895-01-497-5828
NSN 6135-01-442-7275
NSN 6620-00-417-6285
NSN 2925-01-032-3814
NSN 6105-01-377-0059
NSN 5950-01-280-5469
NSN 5985-00-581-0513
NSN 5998-01-197-1662
NSN 6320-01-422-1212
NSN 5915-01-398-0489
NSN 5855-01-391-7077
NSN 5996-00-218-1123