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 6150-01-199-2603
NSN 5915-01-494-0450
NSN 5930-00-143-4582
NSN 6220-00-612-8073
NSN 6135-01-528-6896
NSN 5960-01-527-4845
NSN 5945-01-649-7404
NSN 6130-01-400-6123
NSN 2925-00-555-8836
NSN 6130-00-351-7150
NSN 6685-00-153-3914
NSN 5985-01-243-1027