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 4140-01-550-8908
NSN 5975-00-768-0306
NSN 5915-00-052-2342
NSN 6685-01-079-7988
NSN 6320-01-600-0787
NSN 5945-01-546-6206
NSN 6145-01-019-0773
NSN 5935-01-192-7796
NSN 5950-00-819-6800
NSN 5925-01-634-0664
NSN 6610-01-287-9814
NSN 5925-01-491-0712