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 6620-01-309-1287
NSN 5990-01-527-7640
NSN 5998-01-646-9330
NSN 6685-01-384-5209
NSN 5990-00-343-1813
NSN 6135-01-230-4399
NSN 5998-01-094-5258
NSN 5935-01-302-7821
NSN 5930-00-648-6354
NSN 6620-01-234-1799
NSN 5990-01-573-1634
NSN 6130-00-922-1418