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 5990-01-544-4360
NSN 5998-01-328-2302
NSN 5855-01-346-7682
NSN 5999-00-494-6082
NSN 5935-00-469-5379
NSN 5915-00-937-8476
NSN 5925-01-508-4145
NSN 7035-00-096-9986
NSN 5960-00-671-4034
NSN 5925-01-204-3360
NSN 5930-00-762-8596
NSN 6220-00-818-6478