The AS3209-224 is an aerospace-standard preformed packing (O-ring seal) used in aircraft fluid systems to ensure leak-free sealing in high-pressure hydraulic, fuel, and lubrication applications. It is commonly installed in filter housings, valve bodies, and hydraulic line connections where reliable sealing is critical to system performance.

This seal is designed to fit standardized AS/MS gland geometries and is typically made from fluorocarbon rubber (FKM/Viton type), providing excellent resistance to hydraulic fluids, fuels, oils, and temperature extremes. In filter assemblies, it helps maintain system pressure integrity and prevents fluid bypass or leakage around filter elements.

It is widely used in aircraft maintenance applications, especially in oil filter and hydraulic filter assemblies, where it works alongside other packing elements to ensure consistent sealing under vibration and cyclic pressure loads.

Key features include:

AS3209-224 aerospace standard preformed packing (O-ring)
Used in filter housings, valves, and hydraulic systems
Ensures tight, leak-free sealing in fluid systems
Fluorocarbon (FKM/Viton-type) material construction
Resistant to aviation oils, fuels, and hydraulic fluids
Designed for high pressure and temperature environments
Fits standardized aerospace gland dimensions
Used in oil filter and hydraulic filter assemblies
Supports vibration and cyclic load conditions
Direct replacement per aerospace maintenance standards