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 5999-00-331-9696
NSN 6135-00-733-9665
NSN 6105-00-833-8045
NSN 5915-00-951-1673
NSN 5985-00-257-0013
NSN 6130-01-360-0789
NSN 5999-01-363-9138
NSN 5925-00-455-2181
NSN 5915-00-159-1403
NSN 5965-00-079-2360
NSN 5990-01-116-2181
NSN 4140-01-660-1991