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 5990-01-219-9018
NSN 5998-01-610-9421
NSN 6620-01-198-4468
NSN 6105-01-634-0322
NSN 6220-01-033-5182
NSN 6110-01-422-4520
NSN 5905-00-800-5328
NSN 5930-01-503-6559
NSN 6130-01-515-0675
NSN 5998-01-158-6465
NSN 6320-01-659-2819
NSN 6105-01-579-5530