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 5998-00-520-6391
NSN 5975-01-327-9774
NSN 6645-00-574-9712
NSN 6240-01-028-2971
NSN 6610-00-171-5015
NSN 6220-01-011-0865
NSN 5965-01-139-2712
NSN 6645-00-189-7075
NSN 5925-00-361-8836
NSN 5960-01-169-8215
NSN 5930-01-589-3234
NSN 6220-01-250-4149