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 6110-00-389-6600
NSN 5996-00-525-1777
NSN 5999-01-262-0444
NSN 5998-01-641-4675
NSN 5930-00-614-1749
NSN 6620-00-581-5325
NSN 6145-01-081-9809
NSN 6135-00-753-2276
NSN 4140-00-219-3146
NSN 6240-01-501-4551
NSN 5990-00-583-9920
NSN 5855-01-597-1836