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 6620-00-079-0311
NSN 4140-00-163-6200
NSN 6150-01-179-4504
NSN 6320-01-425-1417
NSN 5935-01-484-9341
NSN 6620-01-102-0008
NSN 5930-01-591-4955
NSN 6130-00-628-7799
NSN 6240-01-167-5979
NSN 5905-01-274-5648
NSN 5855-00-797-8217
NSN 6645-01-570-3215