Original Model Potentiometer for Citation 17s?

I received a Citation 17s that has a replacement volume potentiometer. I am trying to replace it with something closer to the original (since they were so proud of it). It is described as a "32-step, fixed-resistor attenuator". Listed as "Control Volume 22033996A" in the service manual.

Anybody help me with a model number?

Does anyone have an original that they can look at and give me more information? Is it an Alps or something exclusive?

Thanks