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 5998-01-221-7729
NSN 5998-01-371-7040
NSN 4140-01-271-1918
NSN 5999-01-617-0136
NSN 5998-01-068-6947
NSN 5905-01-205-4952
NSN 6220-00-621-4240
NSN 5965-01-466-1154
NSN 6220-01-490-6316
NSN 5985-01-145-3105
NSN 6105-00-038-2954
NSN 4140-01-278-1310