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 156439 is a single-acting industrial component featuring a pulling action, a 100 mm piston diameter, and an adjustable stroke length between 1 and 25 mm. Designed with a square piston rod for torque and guide protection, this unit incorporates heat resistant seals rated up to 120 °C, flexible cushioning rings at both ends, and position detection capabilities for proximity sensors. It operates within a working pressure range of 0.8 to 10 bar using compressed air in accordance with ISO8573-1:2010 [7:4:4], delivering a theoretical force of 4,222 N during advance stroke at 6 bar. 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 156439. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.