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 5925-01-388-5392
NSN 5925-00-009-3280
NSN 6135-00-789-2865
NSN 6240-00-635-9953
NSN 6105-00-972-9750
NSN 5855-01-351-6875
NSN 6130-01-354-7865
NSN 5965-00-417-8182
NSN 5990-00-058-4514
NSN 6320-01-465-2028
NSN 5910-00-755-9748
NSN 2925-00-595-7525