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 6320-01-111-8851
NSN 5950-01-148-6124
NSN 5965-01-386-2988
NSN 5835-00-847-7277
NSN 5985-01-413-5438
NSN 5935-00-879-3453
NSN 6220-01-294-6516
NSN 6620-01-440-9810
NSN 5905-01-081-0734
NSN 2925-01-211-3294
NSN 6105-00-617-9331
NSN 6650-01-444-0551