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Can anyone identify this instrument part and what instrument it comes from?enter image description here

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    $\begingroup$ A better picture might help. $\endgroup$
    – Jon Custer
    Jan 13 at 22:49
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    $\begingroup$ Chances to keep a question like this active increase by provision of context. E.g., found in an analytical lab performing soil analyses; the nozzle-like shape has a fine opening (or not), material is of (magnetic?) metal, and -- like for a crime investigation -- add a scale to the picture. This could be a ruler (preferred), or (if small) look into your pocket for a well known coin to be put next to the unknown object. If the camera used possesses a macro function (i.e., yields a better focus for objects in proximity), activate it. $\endgroup$
    – Buttonwood
    Jan 13 at 22:53

1 Answer 1

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It is the inside of a centrifuge where the rotor gets attached (the top spins, and the two pins ensure proper seat of the rotor on the conical piece). Here is a better picture of the inside of a Sorvall RC-5C Plus Floor Centrifuge, with the hands serving as scale bar. This is partially disassembled to show how one would change the motor brushing.

enter image description here

Screenshot from https://youtu.be/rO1q2eHTyJ0?t=434

If this is for a trivia game, I want to be credited. If this is for some crazy exam question, I'm sorry I helped cheating.

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