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