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 6620-01-411-0390
NSN 4140-00-195-7336
NSN 5925-01-291-2828
NSN 6110-01-103-4046
NSN 5925-01-044-3890
NSN 6135-01-339-4695
NSN 6130-01-594-2902
NSN 5998-00-344-5122
NSN 5960-01-039-2221
NSN 5920-00-988-5057
NSN 5835-01-319-0262
NSN 5930-01-605-4262