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 5998-01-348-8905
NSN 5950-01-206-4403
NSN 6220-01-379-8533
NSN 6150-01-356-4546
NSN 6685-00-222-8216
NSN 5905-01-505-7500
NSN 5945-00-642-5755
NSN 5935-01-207-0935
NSN 5920-00-826-0949
NSN 5935-01-052-2446
NSN 5835-00-707-6266
NSN 5985-01-559-5388