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 5990-01-492-6575
NSN 5975-01-461-9556
NSN 5999-01-312-5607
NSN 6220-00-276-8681
NSN 5935-01-422-2963
NSN 5990-00-665-4105
NSN 5996-01-080-0301
NSN 5855-00-483-0020
NSN 5975-01-568-7061
NSN 6650-00-590-6151
NSN 5985-01-605-4694
NSN 6645-00-757-5396