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 6150-01-400-4211
NSN 5996-00-645-6657
NSN 5920-00-752-0458
NSN 5965-01-313-6569
NSN 6650-01-656-1969
NSN 6105-00-795-1008
NSN 5925-01-010-9536
NSN 5930-01-422-1599
NSN 5935-00-928-2107
NSN 5935-01-364-1648
NSN 6620-01-420-8666
NSN 6320-01-137-4714