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 4140-01-456-3925
NSN 5855-00-337-3679
NSN 5925-01-476-0396
NSN 5950-01-464-4196
NSN 5905-00-233-7197
NSN 6150-00-230-1745
NSN 5920-00-108-5399
NSN 5945-01-631-8846
NSN 5998-01-315-4996
NSN 5925-01-211-6660
NSN 5925-01-399-0613
NSN 6110-01-338-6746