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 5990-01-166-2237
NSN 5855-00-256-5562
NSN 6645-00-658-7838
NSN 5915-01-616-8335
NSN 5925-00-708-6341
NSN 5895-00-823-9473
NSN 2925-01-011-8732
NSN 5996-00-580-4129
NSN 6650-00-047-9473
NSN 6150-01-256-0901
NSN 6220-01-145-4993
NSN 6320-01-362-4863