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 5925-00-872-6522
NSN 5999-00-220-9775
NSN 5960-01-370-4285
NSN 5855-01-473-4354
NSN 6320-01-366-5157
NSN 5996-01-352-4904
NSN 6145-01-578-4326
NSN 6620-00-125-9669
NSN 6645-01-437-9017
NSN 6610-01-533-2158
NSN 5920-01-458-5224
NSN 5855-00-337-3679