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 5915-00-019-0833
NSN 5975-00-343-0370
NSN 5996-01-370-7586
NSN 5905-01-313-2083
NSN 5895-01-631-4596
NSN 4140-00-116-0196
NSN 5930-01-141-2857
NSN 5950-01-485-2343
NSN 5975-01-048-9301
NSN 5975-01-003-8937
NSN 6240-01-212-3529
NSN 6135-00-782-6988