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 6240-01-295-5159
NSN 5999-00-394-7191
NSN 6645-00-315-9254
NSN 5999-00-485-4055
NSN 6135-01-245-5876
NSN 6240-01-607-6252
NSN 6685-00-422-2990
NSN 6105-01-492-5723
NSN 5925-01-137-6161
NSN 6650-00-295-3609
NSN 5855-01-041-3432
NSN 6240-01-063-7685