The AC-A671F-3 is a filter element used in various aircraft hydraulic systems, including the CH-47D helicopter. It is a replaceable component designed to remove contaminants from the hydraulic fluid, protecting sensitive components and ensuring smooth operation of the system.
 
Here are some key specifications of the AC-A671F-3 filter element:
Part number: AC-A671F-3
Material: Aluminum alloy 5056 filtering medium
Filtration rating: 15.0 nominal and 30.0 absolute microns
Applications: Aircraft hydraulic systems
Manufacturer: Pall Aeropower Corporation