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 6620-01-067-5670
NSN 4140-01-212-8286
NSN 5905-00-752-4112
NSN 5999-01-519-9353
NSN 5930-00-752-0744
NSN 6110-01-055-6442
NSN 4140-01-012-4606
NSN 5985-00-528-1191
NSN 6220-01-640-6420
NSN 5950-00-435-8760
NSN 5915-01-633-9845
NSN 6150-00-710-7191