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 4140-00-340-7685
NSN 5998-01-281-8687
NSN 6145-00-493-4073
NSN 5925-01-367-9001
NSN 6145-01-178-3384
NSN 5935-01-177-1326
NSN 6105-01-509-8703
NSN 5905-00-005-7232
NSN 5905-01-180-0337
NSN 5915-00-470-8882
NSN 5915-01-267-2380
NSN 2925-00-051-1467