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 5905-00-871-0139
NSN 6110-01-633-9660
NSN 4140-01-384-4143
NSN 5895-01-167-8905
NSN 5998-01-388-9839
NSN 5895-01-507-7635
NSN 5960-01-485-7532
NSN 6135-00-945-0015
NSN 5920-01-206-9947
NSN 6610-01-116-2527
NSN 6150-01-359-8598
NSN 5855-01-506-6046