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 5905-01-588-0610
NSN 5925-01-348-7826
NSN 6320-01-332-1977
NSN 5895-00-164-4848
NSN 6145-01-445-7535
NSN 6620-00-088-8795
NSN 4140-00-684-7314
NSN 6240-00-018-8028
NSN 6610-01-109-8552
NSN 5950-01-196-6317
NSN 6320-00-937-5625
NSN 5910-00-111-1332