Size (CM): 385*215*91

Weright (KG): 1350

04-6152-0120 is a precision aerospace component, compliant with AS9100D quality standards and FAA/EASA regulations, designed for the fuel systems of large commercial aircraft.

It acts as a fuel tank vent valve seal ring, forming a tight, fuel-resistant seal between the vent valve's disc and valve seat. This seal ensures the valve can balance the air pressure inside the fuel tank during flight, avoiding overpressure or negative pressure that would damage the tank structure, cause fuel volatilization waste, or affect the stable fuel supply to the engine, which may threaten flight safety.

Made from fuel-resistant, high-temperature resistant fluorocarbon rubber, it operates stably at -55°C to 270°C, and resists long-term contact with aviation fuel. Weighing 0.07kg, it enables fast MRO replacement, a critical component for fuel tank pressure balance and flight safety.