Coax connector identification

Trying to identify this connector. Outer diameter 16,3mm. It is a bit bigger than a N-connector. And it is not a 7/16" .

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Welcome to the Digi-Key Technical Forum community. Would you mind showing pictures of the entire product? It may help if I can find some information on that.

Please make sure all markings are visible and legible.


Do you know what the Impedance and Cable Group are for this connector?

Should be 50 ohms

Here is a picure of the russian coax relay.

Hello @knut.meland,

I believe the connector is a SR-50-165FV. I found the part after reviewing Russian Coax Connectors ( Unfortunately, I don’t see that connector in our system. Please check around online to see where it can be purchased. Hope the information helps!