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 6650-00-578-6543
NSN 5915-01-460-6768
NSN 7035-01-498-4895
NSN 5998-01-208-7478
NSN 5975-00-733-5988
NSN 6620-00-663-8962
NSN 5920-00-653-0019
NSN 6150-01-538-6874
NSN 5905-01-642-9380
NSN 5975-01-335-0172
NSN 6110-01-633-9660
NSN 6145-00-043-2874