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 6145-00-648-2726
NSN 5975-01-592-2120
NSN 6130-00-421-2417
NSN 5935-01-209-3480
NSN 6610-01-412-0058
NSN 5895-01-535-7300
NSN 5990-01-619-0935
NSN 5950-00-913-7368
NSN 5895-00-247-5490
NSN 6650-01-392-8086
NSN 5895-01-539-2193
NSN 6105-01-449-1862