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.)
NSN 5915-01-463-8413
NSN 2925-00-964-7128
NSN 5999-00-104-5582
NSN 6650-01-391-7527
NSN 5930-01-426-2296
NSN 5945-00-401-8067
NSN 6320-00-456-2092
NSN 6135-01-487-6275
NSN 5935-01-627-4194
NSN 5855-01-389-8884
NSN 2925-00-595-7525
NSN 5999-00-616-5790