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 4140-01-061-6944
NSN 5855-01-656-6808
NSN 5950-01-532-4296
NSN 6130-01-509-4171
NSN 6220-01-032-5646
NSN 6130-01-364-1751
NSN 6105-00-753-7458
NSN 5915-01-474-6197
NSN 5895-01-504-7602
NSN 5930-01-198-3216
NSN 5945-00-515-2667
NSN 6240-01-306-4320