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 5950-00-248-6921
NSN 6220-01-305-0738
NSN 4140-01-310-1985
NSN 5945-01-030-2229
NSN 5905-00-947-3797
NSN 5975-01-258-7224
NSN 5910-01-364-8381
NSN 5975-01-124-5555
NSN 5985-00-779-5697
NSN 6320-00-070-4544
NSN 6135-01-139-1700
NSN 6110-01-650-1837