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 5990-01-320-1412
NSN 5965-01-079-7939
NSN 5925-00-578-0479
NSN 5960-00-269-4762
NSN 5960-00-584-4553
NSN 5999-01-068-9802
NSN 6105-01-112-8206
NSN 5998-01-492-3543
NSN 5920-00-398-0766
NSN 6620-00-286-5721
NSN 5975-00-330-0120
NSN 6685-00-872-5244