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 6320-01-648-5538
NSN 6650-01-229-7500
NSN 6145-01-289-7863
NSN 5935-00-488-4728
NSN 5920-00-911-3452
NSN 6610-01-464-3037
NSN 5925-01-523-9056
NSN 6610-01-469-6235
NSN 5998-00-541-8792
NSN 5998-01-551-5497
NSN 5985-00-521-9051
NSN 5915-01-528-2523