5000 Series DIN 43650 / ISO 4400 Solenoid Connector, Strain Relief Style, Translucent, 0.315 to 0.394 Inch Cable Diameter

Cable fit is based on diameter, and this strain relief style is meant for cable in the 0.315 to 0.394 inch range, with a listed maximum of 0.41 inch. A 3/8 inch cable is 0.375 inch, so it lands inside the specified range.

Cable diameters from 0.315 to 0.394 inches fall within the rated range for this connector, so heavier cables in that window should seat and seal correctly with the strain relief. Just keep in mind the maximum cable diameter for the broader 5000 Series is 0.41 inches, so anything pushing past that would be outside what the strain relief is built to handle.

The strain relief is meant for cable diameters from 0.315 to 0.394 inches, and the maximum cable diameter called out is 0.41 inches.

With the standard nitrile gasket it'll handle anywhere from -13°F up to 194°F. If your environment pushes past those limits in either direction, there's an optional silicone gasket that stretches the range down to -40°F and up to 257°F. So even in pretty extreme conditions, you've got a path forward without swapping out the whole connector.