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 5835-00-065-6757
NSN 5996-01-010-3816
NSN 6240-00-170-5302
NSN 6320-01-132-2746
NSN 6650-01-106-8601
NSN 5835-01-522-9881
NSN 5998-01-095-7773
NSN 6135-01-588-4160
NSN 4140-01-452-9093
NSN 5895-01-024-9573
NSN 6150-01-605-2479
NSN 4140-01-490-6087