Thread is metric; all sides are chamfered 10 degrees min., 20 degrees max.: nut is corrosion resistent
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 5920-01-387-0819
NSN 7035-01-444-4240
NSN 5950-01-253-6535
NSN 6105-01-100-1007
NSN 6110-01-463-9010
NSN 4140-00-383-2537
NSN 6650-01-500-1756
NSN 5990-01-313-5543
NSN 5925-00-990-3597
NSN 5910-01-649-3398
NSN 5835-00-484-1330
NSN 5990-00-406-4991