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 5935-01-048-7527
NSN 5965-01-170-2812
NSN 5985-00-293-8322
NSN 5998-00-845-4873
NSN 5945-01-431-3693
NSN 5910-00-328-0763
NSN 5925-01-447-9767
NSN 2925-01-508-4138
NSN 5996-01-093-6971
NSN 5960-00-895-0542
NSN 5950-00-869-8235
NSN 6610-01-282-6747