My trusty desktop Boom has developed a fault with the rotary encoder used for menu navigation volume etc. The rotary element works fine, but the push button element has collapsed and no longer responds. It's lost it's 'spring' and even pushing and pulling on it fails to work.

Does anyone know the manufacturer / model of this part?

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It's a 6mm shaft, but it's very short, around 8mm long and I guess is 20 pulses / revolution as it's indexed with 20 position steps.

The next step will be to remove it to see if there's any details on the reverse of it, unless anyone has any insight they can offer!