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 6645-01-428-3576
NSN 6220-00-629-6273
NSN 5925-00-436-9729
NSN 5985-00-373-7054
NSN 6105-00-601-6869
NSN 6130-01-400-6123
NSN 5925-01-173-2841
NSN 5975-01-027-6657
NSN 6145-01-058-5050
NSN 6135-01-593-9256
NSN 5915-01-574-3399
NSN 5999-01-188-2685