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 6220-01-254-0091
NSN 6240-01-114-1926
NSN 5960-01-215-0992
NSN 6220-00-427-8155
NSN 5990-01-061-5618
NSN 5855-00-973-5717
NSN 5985-01-254-9571
NSN 5975-01-300-6501
NSN 5910-00-438-9619
NSN 6105-00-523-9868
NSN 5999-01-181-6774
NSN 6220-01-449-2807