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 553931 is a yellow TPE-A industrial component featuring an outside diameter of 6 mm, an inside diameter of 4 mm, and a shore hardness of D 55 +/-3. Rated for an operating medium of compressed air as per ISO 8573-1:2010 [7:-:-], this TÜV certified tubing operates at temperature-dependent pressures from -0.095 MPa to 1.9 MPa and ambient temperatures between -30 °C and 80 °C. It is suitable for energy chains, exhibits a minimum bending radius of 14 mm, features a bending radius relevant for flow rate of 32 mm, and complies with RoHS and VDMA24364-B2-L LABS conformity standards. Submit the exact part number, quantity, and application requirements to request 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 553931. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.