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 2925-00-674-8608
NSN 5930-00-453-1984
NSN 6620-00-363-7528
NSN 5945-00-492-5876
NSN 5925-01-213-4199
NSN 5835-00-233-6327
NSN 6110-01-373-2234
NSN 5975-01-307-6281
NSN 6320-01-397-9995
NSN 5998-01-576-8625
NSN 6650-01-024-7903
NSN 5950-01-462-1626