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 553321 is a round industrial component featuring a size 50 design with an outside diameter of 57 mm and a piston rod extension of 97 mm. This protective bellows kit incorporates a ducted exhaust, NBR seals and bellows, PA-reinforced adaption parts, and high-alloy stainless steel threaded pins, achieving a CRC of 3 for high corrosion stress alongside an IP54 degree of protection against dust, chips, oils, grease, and petrol. Operating within an ambient temperature range of -10 °C to 80 °C, the RoHS-compliant assembly weighs 166 g, supports any mounting position via push-fitted or threaded pin installation, and features a G1/4 pneumatic connection with VDMA24364-B2-L LABS conformity for stroke ranges between 301 mm and 350 mm. 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 553321. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.