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 Festo industrial component, part number 4640, is a black PE tubing with a 4.3 mm outside diameter, a 3 mm inside diameter, and a Shore hardness of D 42 +/-3. The tubing weighs 0.0068 kg/m, features an 18 mm bending radius relevant for flow rate, and operates at a temperature-dependent working pressure of -0.95 to 9 bar across an ambient temperature range of -30 to 60 °C with compressed air in accordance with ISO8573-1:2010 [7:-:-]. Certified with TÜV authorization, the RoHS-conforming material is free of copper and PTFE. Submit the exact part number, quantity, and application requirements for 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 4640. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.