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 5910-00-175-4311
NSN 4140-01-318-4888
NSN 6645-01-268-7265
NSN 5999-01-322-4906
NSN 6110-01-459-7709
NSN 6650-00-444-7796
NSN 5990-01-463-2279
NSN 6610-01-003-9763
NSN 5985-01-317-3143
NSN 5835-00-689-0278
NSN 5935-01-253-1479
NSN 6645-01-250-3787