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 553439 is a round industrial component featuring a size of 25, a 29 mm outside diameter, a stroke range of 451 mm to 500 mm, and a 138 mm piston rod extension. This structural protective bellows kit includes ducted exhaust, an M5 pneumatic connection, and a product weight of 136 g, utilizing PA-reinforced adaptation parts, NBR seals and bellows, and high-alloy stainless steel threaded pins. It offers CRC 3 high corrosion stress resistance, VDMA24364-B2-L LABS conformity, RoHS compliance, and resistance to dust, chips, oils, grease, and petrol across an ambient temperature range of -10 °C to 80 °C with any mounting position. Submit the exact part number, quantity, and application requirements to receive 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 553439. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.