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 6650-01-642-0367
NSN 6220-01-558-2179
NSN 5996-01-301-6113
NSN 4140-01-218-5919
NSN 5925-01-186-5437
NSN 5945-00-714-9267
NSN 5920-01-062-2209
NSN 5998-01-054-6195
NSN 6320-00-994-0179
NSN 5998-01-312-7528
NSN 6150-01-547-6782
NSN 5999-00-035-4999