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 5910-01-012-9411
NSN 6610-01-220-1011
NSN 5910-01-087-0178
NSN 6320-01-185-3857
NSN 5985-00-261-7753
NSN 6130-00-452-1486
NSN 6150-01-252-4194
NSN 6150-01-117-4773
NSN 5835-01-150-6084
NSN 5960-00-402-6426
NSN 6220-01-202-2771
NSN 6130-01-363-5288