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 4140-00-997-2596
NSN 5855-00-198-3197
NSN 6220-01-189-7990
NSN 5920-01-463-3156
NSN 6240-01-372-2039
NSN 5915-01-534-7614
NSN 6610-00-147-9332
NSN 2925-01-098-9549
NSN 7035-01-547-6846
NSN 6650-01-249-9240
NSN 5999-00-852-2518
NSN 6110-01-484-8776