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 6645-01-229-9769
NSN 5990-00-534-9798
NSN 5920-01-249-2708
NSN 5965-01-141-6485
NSN 6220-01-067-8142
NSN 6105-00-670-0174
NSN 6130-00-426-0058
NSN 4140-00-242-6465
NSN 5835-01-495-0595
NSN 6650-01-549-8478
NSN 5985-01-431-3453
NSN 6645-01-381-6084