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 4140-01-478-4423
NSN 5996-01-118-7686
NSN 6135-01-643-9081
NSN 5835-01-315-8141
NSN 6650-01-472-6753
NSN 6685-01-487-5350
NSN 5999-01-050-7854
NSN 5935-01-242-3597
NSN 5920-01-322-7553
NSN 6650-01-560-0321
NSN 5998-00-113-9168
NSN 5910-01-068-3625