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 4140-00-640-6608
NSN 5985-01-578-7629
NSN 5998-01-048-3171
NSN 7035-01-221-7856
NSN 5895-00-972-5974
NSN 6145-00-345-2565
NSN 5960-01-514-5433
NSN 5990-00-327-4006
NSN 6145-01-258-6673
NSN 5915-00-309-0514
NSN 6135-00-231-7257
NSN 5945-00-224-6266