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 6150-01-521-7661
NSN 5855-01-533-3888
NSN 6645-00-634-9317
NSN 6645-01-195-6207
NSN 7035-01-413-2018
NSN 5915-01-540-1183
NSN 6645-01-576-9896
NSN 6220-01-366-5296
NSN 5999-01-449-2229
NSN 5998-01-252-0314
NSN 6620-01-278-6953
NSN 5855-00-198-3197