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 2925-01-467-1192
NSN 5910-01-441-5739
NSN 6105-00-635-5174
NSN 5945-00-353-9623
NSN 6130-01-592-3441
NSN 5930-01-419-0080
NSN 6110-00-251-5244
NSN 5920-01-398-7123
NSN 6645-01-562-1351
NSN 6150-01-535-7887
NSN 5950-00-314-8268
NSN 6620-01-369-3589