Maybe a actuator or dampener???
Think that this is another piece from the wing.
Looks like part of a gyro.
Motor or generator, it's about 8 inches in diameter.
Looks like this could be a liner for a fuel tank.
This fitting was next to liner.
Another part number with the 187 prefix. There are also three North American inspection stamps on this part.
Short piece of flex line. The screw on the left has a helicoil insert on it.
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