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 4140-00-713-2706
NSN 6220-00-375-0473
NSN 5855-01-383-6860
NSN 6650-01-271-4893
NSN 5935-01-367-9317
NSN 6685-01-098-6645
NSN 4140-00-411-6848
NSN 6220-01-378-5496
NSN 4140-01-266-1696
NSN 6650-01-567-8552
NSN 5920-00-577-2657
NSN 5965-01-578-6911