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 4140-00-238-9940
NSN 5965-01-090-6245
NSN 6135-01-380-4396
NSN 5990-01-147-5225
NSN 5990-01-103-3572
NSN 6645-01-141-7016
NSN 6645-01-250-2702
NSN 6150-00-788-6064
NSN 6620-01-324-4708
NSN 2925-01-197-7864
NSN 6650-00-834-9062
NSN 5950-01-075-9554