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
Engineered from ester-based TPE-U in black, this Festo 553937 industrial component features a 4 mm outside diameter, a 2.6 mm inside diameter, and a Shore hardness of D 52 +/-3 while weighing 0.0089 kg/m. The tubing is suitable for energy chains with a minimum bending radius of 8 mm, a flow-rate relevant bending radius of 17 mm, and a TÜV certification (certificate B 013277 0527 00). It operates under compressed air as per ISO 8573-1:2010 [7:-:-] within an ambient temperature range of -35 °C to 60 °C and handles pressure from -0.095 MPa to 0.7 MPa across all temperatures or up to 1 MPa depending on temperature. Please submit the exact part number, quantity, and application requirements to receive a formal quotation.
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 553937. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.