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 5920-01-252-8660
NSN 5999-01-110-7610
NSN 5996-01-201-0981
NSN 6645-00-276-7544
NSN 5855-00-446-5921
NSN 6645-01-215-9938
NSN 6240-01-415-5149
NSN 5930-01-438-3621
NSN 5945-01-534-9686
NSN 6150-00-012-4912
NSN 6220-01-322-5660
NSN 5915-01-204-5122