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 6105-00-465-6298
NSN 5920-01-082-4375
NSN 5930-01-051-5581
NSN 6650-01-426-4253
NSN 2925-00-247-6248
NSN 5895-01-367-0849
NSN 6105-01-412-4264
NSN 6110-01-022-4854
NSN 6130-01-492-5841
NSN 6240-01-442-7746
NSN 6130-01-172-8979
NSN 5835-00-870-7034