This fits your .
T-fal X9010103 Seal Secure 5 - 6.3 Quart Gasket Cookware. A replacement gasket for P2510737 T-fal 6.3-quart pressure cooker.
T-fal X9010103 Seal Secure 5 Gasket for Stainless Steel Pressure Cooker Cookware P25142 4-Quart P25107 6.3-Quart and P25144 8.5-Quart White - BVOJNX3O7