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 5855-01-119-3316
NSN 6135-01-477-5259
NSN 5965-00-493-6008
NSN 6105-01-359-1463
NSN 5998-01-508-8237
NSN 2925-01-633-4048
NSN 5895-01-418-1764
NSN 5855-00-832-9341
NSN 5999-01-239-3432
NSN 6110-01-390-4634
NSN 6240-01-315-5216
NSN 5930-01-272-8630