Codex Micro Replacement part

Hello - I purchased one of the original ‘clicky’ codex mini keyboards from OpenAI supply. I’m not really sure how exactly it happen but I carry it in a brief case with my MacBook when traveling, and this last time doing that proved too much for dial-knob, and it’s now busted off. Anyway, I’m just hoping now to get the correct part number so I can take for repair here locally in Silicon Valley.

Also, I don’t want to take this time to complain irrately but this is probably useful feedback…As I gathering up the pieces to inspect I noticed the rotary encoder shaft was so cheap that it made the heavy weight of the HID as a whole seem deceptive, at least a quality indicator—the metal housing cap sliced right through notch meant for seating the encoder

shaft, that break what provided the give to bend the shaft ring of the cap.