Size (CM)：16.5*12*6
Weight (KG)：0.2

856A3947P12 is a high-performance aviation hydraulic component compliant with AS9100D standards and FAA/EASA airworthiness regulations, engineered for pressure relief and flow regulation in aircraft landing gear hydraulic systems during MRO and assembly. Fabricated from high-strength corrosion-resistant alloy steel with wear-resistant nickel plating, it operates stably across extreme temperatures from -55℃ to 215℃, resisting hydraulic fluid corrosion, high-pressure surges and mechanical fatigue without performance degradation. Its precision-machined valve seats ensure seamless, leak-free operation with hydraulic pipelines, eliminating overpressure risks during landing gear retraction and extension cycles. Compact and maintenance-friendly, it optimizes undercarriage system efficiency and serves as a critical part for aircraft operational reliability and flight safety.