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 5835-01-549-2911
NSN 5998-01-180-9723
NSN 6130-01-645-9928
NSN 6135-01-504-6929
NSN 6145-01-195-6013
NSN 6610-00-480-1200
NSN 5925-01-239-6743
NSN 6105-01-412-0811
NSN 5960-00-201-5265
NSN 5985-01-463-0037
NSN 6150-00-161-6865
NSN 4140-01-010-8183