Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Festo
The Festo part number 8066404 is a double-acting industrial component featuring a valve actuator size of 40, an F0507 flange hole pattern, and a gear rack and pinion structural design with a 90-degree swivel angle. Operating within a pressure range of 0.2 to 0.8 MPa (29 to 116 psi) and a nominal operating pressure of 0.55 MPa, this safety device achieves its safety function by pressurizing the corresponding pressure chamber with compressed air to switch to the defined safety switching position. It provides safety integrity levels up to SIL 2 in low demand mode, up to SIL 1 in high demand mode, and up to SIL 3 in a redundant architecture, with a 24 bar burst pressure and valve connections conforming to ISO 5211 and VDI/VDE 3845 standards. Submit the exact part number, quantity, and application requirements to receive a quote for this component.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Festo 8066404. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.