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 188139 is a single-acting pneumatic component featuring a 20 mm piston diameter and a 25 mm stroke, operating within a pressure range of 0.15 MPa to 1 MPa (1.5 bar to 10 bar / 21.75 psi to 145 psi). This RoHS-compliant unit delivers a theoretical advancing force of 170 N at 6 bar and includes elastic cushioning rings at both ends, an M5 pneumatic connection, and a 10 N spring resetting force in the retracted position. Suitable for installation in any mounting position via through-hole or optional accessories, this 132 g component utilizes compressed air according to ISO 8573-1:2010 [7:4:4] and permits oil-lubricated operation. Submit your 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 188139. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.