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 5975-00-488-8691
NSN 5999-00-233-6366
NSN 5990-01-164-8673
NSN 6145-00-467-6433
NSN 5905-01-301-7285
NSN 6220-00-429-6652
NSN 6650-00-470-3905
NSN 6620-01-075-5299
NSN 5855-01-003-7102
NSN 6145-01-253-4027
NSN 5855-01-270-6847
NSN 6620-00-140-8644