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 1398666 is a double-acting industrial component featuring a 40 mm piston diameter and a 75 mm stroke, utilizing a piston, piston rod, and cylinder barrel design structure with a female thread piston-rod end. It operates within a working pressure range of 0.6 to 10 bar using compressed air conforming to ISO8573-1:2010 [7:4:4], supporting lubricated operation and featuring flexible cushioning rings or plates at both ends with an impact energy of 0.36 J in end positions. At 6 bar, it delivers a theoretical advance force of 754 N and a return force of 633 N, incorporating a moving mass of 250 g, a total product weight of 674.5 g, and a CRC 2 moderate corrosion stress classification for ambient temperatures between -20 and 80 °C. Submit the exact part number, quantity, and application requirements to request 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 1398666. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.