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 6650-00-269-5000
NSN 5925-00-469-7683
NSN 5965-01-555-8007
NSN 5960-00-280-8629
NSN 5975-01-599-0843
NSN 5990-01-259-7138
NSN 5905-00-558-7619
NSN 6110-01-211-7209
NSN 6620-01-550-8573
NSN 6105-00-815-2901
NSN 5855-00-221-9435
NSN 6650-01-450-3158