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 2925-01-577-0004
NSN 5930-01-417-8389
NSN 6130-01-659-3276
NSN 6650-01-206-5857
NSN 5925-00-889-2707
NSN 2925-00-010-2632
NSN 5990-00-621-0572
NSN 2925-00-005-1618
NSN 4140-01-135-9271
NSN 6650-01-607-5817
NSN 6610-01-497-4523
NSN 5965-01-633-8849