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 6620-00-379-2856
NSN 5990-01-400-3299
NSN 5925-01-432-8431
NSN 6620-01-032-3937
NSN 5999-01-604-2194
NSN 5945-01-145-3179
NSN 5950-01-399-8677
NSN 5990-01-572-3137
NSN 5835-00-505-0733
NSN 6220-01-441-6713
NSN 6135-01-475-7415
NSN 6110-01-155-4048