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 4140-00-300-4175
NSN 6650-01-142-1688
NSN 5998-01-516-1321
NSN 6240-00-863-6105
NSN 5835-00-779-2836
NSN 6220-01-143-5761
NSN 4140-00-991-8849
NSN 5985-01-027-8732
NSN 5920-01-526-7220
NSN 5975-01-328-0922
NSN 2925-01-400-2286
NSN 6620-01-128-0945