Piston T-Seal, 1.50 Inch Bore, O-Ring Groove

This Piston T-Seal can handle temperatures ranging from -65°F to 220°F, so it should hold up well even in pretty extreme conditions.

For a 1.50 inch bore with an O-ring groove, this piston T-seal is sized for that application and is listed as a Hercules Sealing Products piston T-seal (catalog C1DM26). It uses hard plastic back-up rings with a Buna-N rubber sealing element.

Rated from 0 to 10,000 PSI, so it covers a wide range of hydraulic system demands. Running near the top of that range isn't unusual in heavy-duty industrial setups, and the combination of Buna-N rubber with hard plastic back-up rings is what keeps it from extruding or failing under that kind of load. As long as your system stays within that pressure ceiling, you should be in good shape.