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 4140-00-044-1329
NSN 5945-00-121-3837
NSN 5925-00-458-6973
NSN 6240-01-470-7706
NSN 5996-01-317-9389
NSN 5990-00-610-2826
NSN 4140-01-257-6571
NSN 6610-01-474-5206
NSN 6610-01-083-1446
NSN 5960-01-210-7116
NSN 6240-00-082-1142
NSN 7035-01-485-0269