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 5975-00-960-5879
NSN 5915-00-233-6346
NSN 6135-01-441-0402
NSN 5950-01-445-8905
NSN 6145-01-564-9204
NSN 5895-01-140-7685
NSN 5895-01-171-5149
NSN 6320-01-622-5493
NSN 5990-01-029-0868
NSN 5998-00-278-7350
NSN 5895-01-115-1499
NSN 5950-00-983-0807