Size (CM): 53*34*32

Weright (KG): 33.2

856A5515G05 is a precision aerospace component, compliant with AS9100D quality standards and FAA/EASA regulations, designed for the hydraulic systems of large commercial aircraft.

It acts as a hydraulic servo valve seal ring, forming a high-performance airtight seal between the servo valve's spool and valve body. This seal ensures the servo valve can accurately adjust hydraulic fluid flow and pressure to control flight control surfaces, maintaining precise aircraft maneuverability, while avoiding fluid leakage that would reduce control sensitivity, cause unbalanced flight, or damage hydraulic system components.

Made from oil-resistant, high-temperature fluorosilicone rubber, it can withstand temperatures from -40°C to 245°C and long-term contact with aviation hydraulic fluids. Weighing 0.06kg, it enables quick replacement during MRO, and is critical for flight control system stability.