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 5965-01-559-4958
NSN 6105-00-996-7254
NSN 5835-00-583-1316
NSN 5945-00-115-8569
NSN 6110-01-400-4207
NSN 6220-01-464-3040
NSN 5990-01-562-4521
NSN 5950-01-642-4279
NSN 5965-01-256-0059
NSN 6105-01-443-1291
NSN 6220-01-540-0509
NSN 5945-01-475-6905