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 6110-01-019-7987
NSN 5925-00-827-0927
NSN 5925-00-246-4645
NSN 5999-00-277-4257
NSN 5905-00-369-1644
NSN 5950-01-044-5039
NSN 6130-00-978-0204
NSN 5935-01-282-3082
NSN 6610-01-442-2213
NSN 6105-01-461-3287
NSN 6240-01-067-6457
NSN 5930-01-158-6428