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.)
NSN 6610-01-258-6206
NSN 5905-00-311-8573
NSN 5835-01-090-0784
NSN 5999-00-247-0942
NSN 6105-01-555-8232
NSN 5835-01-476-5584
NSN 5910-00-170-6784
NSN 2925-01-442-0878
NSN 6320-01-054-3046
NSN 6150-00-518-5992
NSN 6610-01-357-5957
NSN 5999-01-480-1912