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 6645-01-091-0009
NSN 6645-01-633-1852
NSN 6685-01-336-2535
NSN 5835-01-485-0210
NSN 5950-00-403-3284
NSN 5998-00-528-9032
NSN 6240-01-474-0752
NSN 5975-00-081-2171
NSN 6650-01-077-7594
NSN 6685-00-564-9800
NSN 6105-01-573-5508
NSN 5965-01-597-8322