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 4140-01-417-2611
NSN 5895-01-549-5157
NSN 6110-01-442-6665
NSN 5855-00-051-2792
NSN 5855-00-481-0019
NSN 5965-01-619-6046
NSN 5990-01-104-0469
NSN 6105-01-357-3705
NSN 5950-01-526-9340
NSN 6650-01-014-5990
NSN 6110-01-206-4893
NSN 6645-01-244-4881