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 5990-00-594-7291
NSN 5950-01-471-8138
NSN 6620-01-543-3866
NSN 6135-01-400-2947
NSN 5835-00-170-5238
NSN 6650-01-329-5595
NSN 4140-00-295-0787
NSN 6610-01-444-2050
NSN 5990-00-642-9930
NSN 5925-01-018-5655
NSN 6130-01-414-3497
NSN 6645-01-633-1852