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 5915-00-550-1057
NSN 5999-00-580-1876
NSN 5855-01-149-2267
NSN 4140-01-237-4358
NSN 6110-00-438-2769
NSN 4140-01-011-5356
NSN 5985-00-394-5888
NSN 5935-01-551-6360
NSN 5998-00-690-4552
NSN 5925-01-623-8015
NSN 5999-01-655-1338
NSN 6105-01-398-1088