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 5998-00-883-7033
NSN 2925-01-579-1010
NSN 6145-01-534-4621
NSN 6130-01-040-0933
NSN 4140-01-632-2421
NSN 5925-01-440-7571
NSN 5999-01-126-0927
NSN 6650-00-172-7519
NSN 5999-00-350-2900
NSN 6105-01-173-5306
NSN 6645-01-329-2363
NSN 6650-01-389-8240