HU55474-2 is a precision-manufactured aerospace engine lubrication system oil filter housing seal, compliant with AS9100D quality standards and FAA/EASA regulations, designed for large commercial turbofan engines. It seals the connection between the oil filter housing and the engine lubrication system manifold, preventing lubricating oil leakage, while also blocking external contaminants from entering the filtration system, which is critical for maintaining the cleanliness of the lubricating oil, ensuring continuous, effective lubrication for high-speed rotating engine components, and reducing wear and component failure risks.

Made from heat-resistant, oil-resistant fluorosilicone rubber with a reinforced metal insert, it withstands operating temperatures from -55°C to 190°C and oil system pressures up to 380 psi. Weighing 0.09kg with a precision-machined sealing edge, it enables fast replacement and tightness verification during lubrication system MRO overhauls. FAA Part 25 certified, it is a key component for lubrication system integrity.