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 5945-00-400-1787
NSN 5960-01-459-6665
NSN 5930-01-435-5358
NSN 6110-00-939-7065
NSN 6240-01-521-4256
NSN 6135-01-511-1975
NSN 6240-01-548-0529
NSN 5920-01-311-6855
NSN 6105-01-258-0346
NSN 4140-01-534-7833
NSN 5920-01-303-0679
NSN 6620-01-388-8955