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.)
Classification: Nuts of iron or steel
NSN 4140-01-435-5002
NSN 5990-00-161-2797
NSN 5915-01-351-8037
NSN 5996-01-457-6529
NSN 6240-01-344-5465
NSN 5930-01-359-9771
NSN 5945-01-299-9223
NSN 5920-00-270-5179
NSN 5945-01-537-0202
NSN 5910-00-922-1183
NSN 6610-01-497-1688
NSN 6105-01-334-9807