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 2925-01-027-1293
NSN 6650-01-165-2175
NSN 6135-00-583-3966
NSN 5950-01-524-8682
NSN 6145-01-634-0388
NSN 5855-01-349-6135
NSN 5950-00-008-8629
NSN 5925-01-040-7156
NSN 5905-01-472-5751
NSN 6135-00-973-5632
NSN 6135-01-320-9207
NSN 4140-01-544-1764