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 6645-01-633-1852
NSN 6650-01-654-1813
NSN 5975-01-633-1213
NSN 5905-00-917-5092
NSN 5855-00-631-4565
NSN 5985-01-438-9319
NSN 2925-01-336-8019
NSN 5920-01-468-5911
NSN 6620-01-424-6925
NSN 5996-01-327-6853
NSN 6220-01-448-9830
NSN 6620-01-435-2784