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 7035-01-651-0678
NSN 5996-00-685-9109
NSN 6150-00-821-7576
NSN 6130-01-409-2867
NSN 5996-00-920-1431
NSN 6240-01-394-8592
NSN 5960-00-398-1029
NSN 6610-01-100-3662
NSN 5855-00-054-4686
NSN 5950-01-168-5849
NSN 6135-00-209-6918
NSN 5920-00-283-1321