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 4140-01-130-1456
NSN 5990-01-080-9745
NSN 5910-01-422-7427
NSN 6110-00-045-6323
NSN 5915-00-636-9785
NSN 6650-01-659-4609
NSN 5835-01-092-6759
NSN 6620-01-462-5196
NSN 6130-00-473-6132
NSN 5996-00-784-3240
NSN 6145-01-553-8655
NSN 6320-01-442-8604