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 4140-01-510-0777
NSN 5975-01-486-9019
NSN 5975-00-936-7377
NSN 6620-01-183-5329
NSN 5835-00-980-0468
NSN 6620-00-701-3575
NSN 5930-00-564-5296
NSN 6610-00-906-5723
NSN 6240-01-213-0143
NSN 5945-01-012-6654
NSN 6150-00-257-5027
NSN 5998-01-282-6770