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 4140-00-725-4012
NSN 5855-00-763-2155
NSN 5855-01-271-6617
NSN 6620-01-062-1662
NSN 5950-01-279-5277
NSN 6645-00-376-4829
NSN 6130-00-374-7540
NSN 5999-00-826-9039
NSN 5998-01-076-2768
NSN 6320-01-461-5866
NSN 5965-01-419-4202
NSN 6610-00-355-0450