FT 267/6-12 screw-in check valve with M33x2 thread, to screw into a manifold or valve body.
Cartridge-type check valve for screw-in mounting: it is screwed into an M33x2 threaded cavity in a hydraulic manifold or valve body, rather than fitted in the pipework. It lets oil through in one direction and closes in the opposite one.
The code FT 267/6-12 gives the series and the size; M33x2 is the thread that screws into the cavity.
Before ordering, check the cavity thread, the code stamped on the valve you are replacing and the flow direction. When fitting, check the seals and use the tightening torque specified for the manifold.
Specific References
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