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 5915-01-024-8200
NSN 5935-00-412-4130
NSN 6645-00-183-8812
NSN 5915-01-442-6711
NSN 5945-01-037-1072
NSN 5855-01-648-2674
NSN 5960-01-541-9884
NSN 5965-01-596-7631
NSN 6105-01-444-1201
NSN 5990-01-571-7468
NSN 5835-01-477-0137
NSN 5930-01-374-5639