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 4140-01-276-2436
NSN 5960-00-636-4834
NSN 5996-01-293-5936
NSN 6150-00-300-0395
NSN 6650-00-945-9105
NSN 6220-01-353-7777
NSN 6110-01-643-8403
NSN 5935-00-001-7357
NSN 5965-00-553-6898
NSN 5915-01-629-1907
NSN 5975-00-200-2002
NSN 5905-01-367-2819