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 5990-01-374-3877
NSN 5998-00-456-0864
NSN 6150-01-428-7815
NSN 5925-01-272-0894
NSN 6105-01-443-6858
NSN 6320-01-495-6893
NSN 5999-01-254-4984
NSN 5935-01-138-6174
NSN 6130-01-331-5096
NSN 5905-01-302-6499
NSN 6110-00-248-7475
NSN 6150-01-057-7855