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 5960-01-135-5639
NSN 5998-00-594-8460
NSN 6685-01-530-8748
NSN 5975-00-980-3042
NSN 6150-00-565-6950
NSN 5905-00-098-6349
NSN 2925-01-370-6898
NSN 6650-01-113-6689
NSN 6620-00-942-1751
NSN 6620-00-146-3465
NSN 5920-01-085-8374
NSN 5945-01-493-4356