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 5945-00-304-3312
NSN 5855-01-552-4759
NSN 5855-00-944-0949
NSN 4140-00-973-8185
NSN 5930-01-433-3838
NSN 6650-00-754-2276
NSN 5950-00-912-9301
NSN 6620-01-530-1229
NSN 5835-01-508-2528
NSN 6320-01-039-5891
NSN 6220-01-399-1606
NSN 5960-01-495-0859