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 5996-00-272-2560
NSN 6105-00-516-2151
NSN 4140-01-373-0731
NSN 5945-01-104-3333
NSN 6135-00-437-5182
NSN 5920-01-413-8513
NSN 6610-01-412-0058
NSN 5895-00-671-0436
NSN 5996-00-780-5269
NSN 6145-01-349-4918
NSN 5998-00-236-7516
NSN 6650-01-566-1573