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 6105-01-355-5557
NSN 6150-00-753-3950
NSN 5975-00-913-1894
NSN 5920-00-067-9115
NSN 5925-00-832-9953
NSN 2925-00-690-8763
NSN 5905-01-033-0840
NSN 5960-01-224-7151
NSN 6105-00-111-2546
NSN 6145-01-197-7469
NSN 6105-00-864-9468
NSN 6320-01-384-3219