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 5905-01-579-0268
NSN 5950-01-127-1457
NSN 5895-01-562-7751
NSN 5950-01-247-9446
NSN 6150-00-696-2709
NSN 5975-01-456-1828
NSN 6105-01-374-3445
NSN 4140-01-050-8096
NSN 6135-00-182-7008
NSN 6130-01-186-9014
NSN 5925-01-645-4909
NSN 5975-01-487-6417