2C81967G01 is a precision aerospace component, compliant with AS9100D quality standards and FAA/EASA regulations, designed for the lubrication systems of large commercial turbofan engines.

It serves as an engine oil pressure regulator valve seal, creating a reliable seal between the pressure regulator valve and its mounting seat in the engine lubrication module. This seal prevents lubricating oil from leaking at the valve connection, which would disrupt the stable control of engine oil pressure, leading to insufficient lubrication for high-speed moving components like bearings and gears, or excessive oil pressure that damages the lubrication system.

Made from oil-resistant, high-temperature fluorosilicone rubber, it withstands temperatures from -45°C to 230°C and long-term aviation lubricant contact. Weighing 0.07kg, it enables fast replacement in MRO, and is critical for stable engine lubrication.