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 4140-01-041-8896
NSN 6620-00-909-3984
NSN 6130-01-128-9358
NSN 5985-00-397-7296
NSN 5895-01-258-2363
NSN 5930-00-151-4518
NSN 5855-00-327-2061
NSN 6130-01-578-5880
NSN 6620-01-117-0834
NSN 5996-01-519-7548
NSN 5915-01-041-9188
NSN 6620-01-371-5040