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 4140-00-529-7463
NSN 5975-00-116-3874
NSN 6240-01-459-1972
NSN 5910-00-418-6441
NSN 5855-01-600-8134
NSN 5855-01-100-3272
NSN 5915-01-393-4406
NSN 6105-01-462-1657
NSN 5998-01-242-0007
NSN 6620-01-327-4111
NSN 6650-01-581-9677
NSN 6620-00-723-2075