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 6620-01-557-6512
NSN 6610-00-495-9053
NSN 6610-01-460-8898
NSN 6620-01-593-0817
NSN 5990-01-054-3332
NSN 2925-01-415-0264
NSN 5998-01-607-2906
NSN 5915-00-924-2230
NSN 5930-00-392-7722
NSN 2925-00-149-0760
NSN 5999-01-463-1230
NSN 2925-01-317-4543