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 6145-01-359-8028
NSN 6610-00-508-1728
NSN 6685-00-450-7947
NSN 5998-00-804-9956
NSN 5975-01-424-0113
NSN 5965-00-417-8182
NSN 5960-01-111-5142
NSN 6650-01-253-8062
NSN 5915-00-936-7572
NSN 6150-01-386-3844
NSN 5998-00-237-1937
NSN 5965-01-196-1526