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 6105-01-422-9347
NSN 5920-00-466-3950
NSN 7035-01-285-3857
NSN 2925-01-642-3255
NSN 5985-00-454-5773
NSN 6620-01-462-0001
NSN 6650-01-020-6148
NSN 5965-01-570-4711
NSN 6650-01-558-5796
NSN 7035-01-178-5631
NSN 6610-01-010-3159
NSN 5930-01-343-8895