Thread is metric; all sides are chamfered 10 degrees min., 20 degrees max.: nut is corrosion resistent
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: Nuts of iron or steel
NSN 2925-00-174-4322
NSN 6620-01-246-4314
NSN 6110-00-893-6510
NSN 5935-01-522-1289
NSN 5985-01-495-6164
NSN 6130-00-947-9232
NSN 5945-01-186-4619
NSN 5960-00-974-7852
NSN 6135-00-628-1142
NSN 5835-00-322-5654
NSN 5985-00-337-6819
NSN 6610-01-211-0835