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 6220-01-634-0660
NSN 6130-00-221-5728
NSN 7035-00-830-1235
NSN 5998-01-359-9185
NSN 4140-01-174-9422
NSN 5920-01-433-7270
NSN 5920-01-495-1268
NSN 6145-01-136-4622
NSN 5905-01-179-4746
NSN 5855-01-657-7657
NSN 5990-01-271-1628
NSN 5905-01-434-9149