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 6645-00-964-3020
NSN 4140-00-944-7318
NSN 6620-01-358-5249
NSN 5998-00-233-6392
NSN 6145-00-264-2137
NSN 5999-01-389-9578
NSN 5855-01-497-0467
NSN 6130-01-432-6198
NSN 5998-00-268-1908
NSN 5985-01-392-0613
NSN 5985-01-504-6677
NSN 6105-01-460-7002