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 4140-01-548-5430
NSN 5975-01-400-4204
NSN 6110-01-398-5322
NSN 6620-01-152-9453
NSN 6685-01-317-4639
NSN 5835-01-185-1102
NSN 5915-01-376-8554
NSN 6150-01-399-8612
NSN 5945-00-837-3517
NSN 6105-01-247-7013
NSN 5999-01-453-2529
NSN 5965-01-461-2850