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 5990-00-591-0991
NSN 4140-00-170-5152
NSN 5910-01-614-7064
NSN 5950-00-770-9422
NSN 6685-01-005-0325
NSN 6240-01-497-3085
NSN 5935-01-613-4795
NSN 5855-01-062-5655
NSN 5910-01-530-0828
NSN 2925-00-365-3289
NSN 5915-01-284-5658
NSN 5996-00-525-1777