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.)
NSN 5835-01-656-0261
NSN 5999-00-294-9241
NSN 2925-01-507-1276
NSN 5960-00-357-3043
NSN 5925-01-339-2705
NSN 5895-01-125-2219
NSN 5920-00-973-6637
NSN 6145-01-046-5565
NSN 5915-01-463-2465
NSN 5999-01-440-9977
NSN 5835-00-513-9680
NSN 6110-00-452-0448