956A6655G02 is a precision aerospace component, compliant with AS9100D quality standards and FAA/EASA regulations, designed for the pneumatic systems of large commercial aircraft.
It serves as a pneumatic pressure regulator seal ring, forming a tight, pressure-stable seal between the regulator's valve core and valve body. This seal ensures the regulator can accurately adjust the pressure of compressed air supplied to pneumatic components, such as cabin pressure control systems or wing anti-ice systems, avoiding air leakage that would cause pressure regulation failure, affect cabin comfort, or reduce the effectiveness of anti-ice systems during flight.
Made from wear-resistant, pressure-resistant fluorosilicone rubber, it operates stably at -50°C to 250°C, and resists long-term contact with aviation compressed air. Weighing 0.05kg, it enables fast MRO replacement, a critical component for pneumatic system reliability.