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 5985-01-518-4653
NSN 5920-01-334-9848
NSN 6135-01-462-1135
NSN 5999-01-420-9763
NSN 5950-00-378-9959
NSN 6620-00-849-0110
NSN 5935-01-392-5160
NSN 6110-01-379-6917
NSN 5950-00-408-0809
NSN 5905-01-648-0776
NSN 6135-00-942-7970
NSN 5950-01-448-1542