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 6240-00-269-9477
NSN 5985-01-020-7894
NSN 4140-01-341-5443
NSN 5996-00-597-2234
NSN 6240-01-160-1070
NSN 6650-01-448-6998
NSN 5999-01-371-2860
NSN 6620-01-420-7289
NSN 5960-01-092-4762
NSN 5996-00-991-3859
NSN 2925-01-182-0227
NSN 6620-00-808-7277