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 6610-01-137-5959
NSN 5905-00-597-8280
NSN 5950-01-106-3533
NSN 5905-00-997-2215
NSN 6145-00-657-4755
NSN 5945-00-360-3873
NSN 5950-01-327-2808
NSN 6685-01-369-0601
NSN 5999-01-528-7492
NSN 5935-01-360-0035
NSN 5996-01-205-8535
NSN 5935-01-583-2451