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 188251 is a double-acting industrial component featuring a 40 mm piston diameter and a 25 mm stroke, built to ISO 6431 and VDMA 24562 hole pattern norms with a piston and piston rod structural design. It operates within a pressure range of 1 bar to 10 bar (14.5 psi to 145 psi) using compressed air conforming to ISO 8573-1:2010 [7:4:4], utilizing elastic cushioning rings at both ends and supporting any mounting position across an ambient temperature range of -20 °C to 80 °C. Delivering a theoretical force of 754 N advancing and 686 N retracting at 6 bar, this unit has a product weight of 344 g, a moving mass of 89 g, a CRC rating of 1, and VDMA24364-B1/B2-L LABS conformity. Submit the exact part number, quantity, and application requirements for a quote.
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 188251. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.