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 6240-01-351-6729
NSN 5910-00-070-9122
NSN 6105-01-158-4674
NSN 5950-00-069-7558
NSN 5998-01-461-9056
NSN 6130-00-626-0082
NSN 6105-01-216-9442
NSN 5950-01-512-6199
NSN 6110-00-233-8121
NSN 6320-01-036-2598
NSN 5960-01-162-5638
NSN 6130-00-277-7321