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 3660766 is a double-acting industrial component featuring a 40 mm piston diameter, an 80 mm stroke, and an M12x1.25 external piston rod end conforming to ISO 15552 standards. Operating within a pressure range of 0.06 MPa to 1.2 MPa, this unit utilizes self-adjusting pneumatic end-position cushioning with a 19 mm cushioning length and delivers a theoretical retracting force of 633 N at 6 bar. Position sensing occurs via proximity switch, and the profile barrel design supports any mounting position within an ambient temperature range of -20 °C to 80 °C. Submit the exact part number, quantity, and application requirements to request a formal 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 3660766. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.