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 5915-00-525-5753
NSN 5996-01-268-1625
NSN 4140-01-159-2639
NSN 6650-00-337-3597
NSN 5915-01-046-6531
NSN 5965-01-046-9619
NSN 5905-01-498-4231
NSN 5935-01-122-7590
NSN 5960-01-443-3067
NSN 5950-01-084-0098
NSN 6240-00-270-4286
NSN 5905-01-124-2002