Size (CM): 53*34*32

Weright (KG): 32

856A5517G06 is a precision aerospace component, compliant with AS9100D quality standards and FAA/EASA regulations, designed for the hydraulic systems of large commercial aircraft, matching with 856A5515G05 in hydraulic servo valve assemblies.

It serves as an auxiliary seal ring for the hydraulic servo valve, forming a secondary leak-proof barrier at the servo valve's pressure port connection. This seal enhances the overall sealing performance of the servo valve, preventing hydraulic fluid leakage that would affect the accurate regulation of fluid flow and pressure for flight control surfaces, avoiding reduced control precision, flight instability, or hydraulic system damage.

Made from high-performance oil-resistant, high-temperature fluorosilicone rubber, it works stably at -40°C to 250°C and resists aviation hydraulic fluids. Weighing 0.05kg, it allows fast MRO replacement, a critical safeguard for flight control hydraulic system reliability.