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 4140-01-008-0559
NSN 5975-00-602-6740
NSN 4140-00-146-9795
NSN 5999-01-458-1858
NSN 5996-00-281-4500
NSN 6105-01-349-8588
NSN 5915-01-269-2587
NSN 5835-00-707-6266
NSN 5960-01-380-9692
NSN 5998-01-243-6926
NSN 6150-01-451-3064
NSN 5960-01-425-1454