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
This black Festo industrial component (Part Number 553939) features an 8 mm outside diameter, a 5.7 mm inside diameter, and is constructed from ester-based TPE-U with a Shore hardness of D 52 +/-3. It offers an operating pressure of -0.095 MPa to 0.7 MPa across its entire temperature range of -35 °C to 60 °C, and is suitable for energy chains with a minimum bending radius of 24 mm. The tubing supports compressed air as per ISO 8573-1:2010 [7:-:-], complies with UL94 HB material fire tests and VDMA24364-B2-L LABS conformity, and holds TÜV certification (certificate B 013277 0527 00). 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 553939. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.