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 6220-01-474-5989
NSN 5990-01-230-0059
NSN 5935-01-084-1044
NSN 5895-01-143-0822
NSN 6645-01-643-0297
NSN 6135-01-235-4168
NSN 5950-01-348-2056
NSN 5910-01-100-0627
NSN 5990-00-586-6435
NSN 5930-01-430-0144
NSN 6650-01-468-3167
NSN 6240-01-579-4734