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 6320-01-054-3046
NSN 6105-00-483-1370
NSN 6645-01-144-6415
NSN 5945-01-329-2412
NSN 6650-01-270-0318
NSN 5915-00-170-6775
NSN 6220-01-454-4022
NSN 5915-01-458-5487
NSN 6150-01-511-5651
NSN 5910-01-285-7634
NSN 5990-01-248-8222
NSN 6105-01-146-5335