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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 4140-00-141-0132
NSN 5835-01-463-2334
NSN 5835-00-400-5056
NSN 5945-01-544-7640
NSN 6145-00-553-8196
NSN 5905-01-611-0410
NSN 4140-00-918-7837
NSN 6650-00-333-3046
NSN 5915-01-563-3412
NSN 5999-01-011-0417
NSN 6650-01-106-8601
NSN 5930-00-456-0674