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 5996-01-038-1973
NSN 6645-01-367-2581
NSN 4140-01-249-1388
NSN 5930-01-563-7216
NSN 6620-00-675-3342
NSN 6130-00-186-8460
NSN 6150-01-539-2733
NSN 4140-01-481-3587
NSN 6135-01-448-4031
NSN 6130-01-045-2324
NSN 5835-01-604-6337
NSN 5965-01-121-2319