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 5960-01-100-5065
NSN 5975-01-320-2760
NSN 5975-00-661-1832
NSN 5960-01-196-3344
NSN 6610-01-391-9355
NSN 6110-01-441-6507
NSN 6685-01-128-5278
NSN 6685-00-191-5001
NSN 6150-00-444-9663
NSN 5998-01-337-9154
NSN 5910-00-987-1596
NSN 5950-01-027-2257