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 5910-00-502-7031
NSN 4140-00-011-1899
NSN 6650-01-284-9942
NSN 6105-01-329-6775
NSN 6320-00-564-2772
NSN 5915-00-993-2970
NSN 5965-01-468-5583
NSN 5915-01-167-8506
NSN 6650-01-633-9147
NSN 6135-01-578-8919
NSN 5915-01-629-1573
NSN 6240-01-120-3533