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 5960-01-388-1988
NSN 5990-00-859-2932
NSN 5855-01-426-5589
NSN 5945-01-027-7964
NSN 5985-01-598-7628
NSN 5930-00-823-4791
NSN 6105-01-168-8335
NSN 5990-01-388-0252
NSN 6685-01-315-7895
NSN 5975-01-361-8953
NSN 5990-00-518-3195
NSN 5930-01-507-0503