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 4140-01-435-6540
NSN 5975-00-718-4882
NSN 6135-01-362-4256
NSN 5945-00-561-1396
NSN 7035-00-703-3535
NSN 5835-01-336-1153
NSN 4140-00-246-4969
NSN 7035-01-512-8096
NSN 6220-01-475-8049
NSN 5855-01-364-1005
NSN 6650-01-196-4667
NSN 5920-00-817-3387