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 5960-01-163-8905
NSN 5999-00-944-8555
NSN 6610-00-628-6742
NSN 6650-00-412-5988
NSN 5990-00-258-0228
NSN 6150-00-129-8586
NSN 5998-01-631-6549
NSN 6320-01-283-1300
NSN 6135-01-031-8078
NSN 6105-01-050-3799
NSN 4140-01-110-3785
NSN 5990-01-147-5225