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 5950-00-522-5430
NSN 4140-01-477-2771
NSN 5855-00-925-0114
NSN 6150-01-659-8325
NSN 5925-01-394-8790
NSN 5895-01-278-9379
NSN 6320-00-459-8973
NSN 5895-00-708-2116
NSN 5990-01-414-7618
NSN 6105-01-413-0209
NSN 6240-00-677-0305
NSN 5999-00-796-9380