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 5999-01-422-1056
NSN 4140-01-406-2993
NSN 6150-00-161-2480
NSN 5915-01-633-9845
NSN 5930-01-244-4253
NSN 6240-01-420-6495
NSN 6645-01-452-9495
NSN 6645-01-101-9587
NSN 6145-01-649-4015
NSN 5910-01-386-9602
NSN 6220-00-350-0334
NSN 5960-01-288-8910