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 6645-01-578-6815
NSN 5920-00-817-3387
NSN 6685-00-855-8271
NSN 5996-01-353-9261
NSN 6110-00-107-0437
NSN 6150-01-232-1920
NSN 6110-00-849-9156
NSN 4140-01-243-1281
NSN 6105-01-482-6301
NSN 5920-01-491-9914
NSN 5895-01-098-3691
NSN 5925-01-350-1847