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 6220-01-413-8387
NSN 4140-00-205-6491
NSN 5990-01-311-7491
NSN 6650-01-188-4516
NSN 6130-01-400-6123
NSN 5999-01-518-6577
NSN 6110-01-496-6975
NSN 6150-00-988-5768
NSN 6105-01-265-8693
NSN 6620-01-354-2824
NSN 5996-01-037-6505
NSN 5920-01-501-5961