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 4140-00-007-4578
NSN 5910-00-269-2293
NSN 5935-01-230-9713
NSN 5895-00-197-4899
NSN 6145-01-634-0388
NSN 6620-01-199-8580
NSN 6685-01-203-1034
NSN 5915-01-461-9190
NSN 5930-00-561-7847
NSN 5945-00-677-5355
NSN 6645-01-283-5387
NSN 5915-01-492-5333