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 5996-01-197-1688
NSN 5996-00-161-4202
NSN 6240-01-278-5342
NSN 5945-01-434-3907
NSN 6135-01-428-8821
NSN 6610-00-774-8691
NSN 6645-01-014-9205
NSN 5935-00-728-5806
NSN 6130-01-168-6219
NSN 2925-01-261-0701
NSN 5998-00-589-3719
NSN 6130-01-262-8118