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 4840839 is a single-acting industrial component featuring a pulling mode of operation, a 25 mm piston diameter, and a 10 mm stroke with a piston rod at one end. This structural design incorporates a profile barrel, elastic cushioning rings or pads at both ends, and a guide rod with a yoke for protection against torsion and guidance. Operating with compressed air as per ISO 8573-1:2010 [7:4:4] within an operating pressure range of 0.15 MPa to 0.8 MPa, it delivers a theoretical force of 221 N retracting and advancing at 6 bar. Submit the exact part number, quantity, and application requirements to request 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 4840839. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.