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 558818 is an L-shaped industrial component featuring a standard size, a 3 mm nominal width, and a push-pull structural design with a silver releasing ring. This pneumatic fitting includes an external thread G1/8 connection 1 and a connection 2 for 4 mm outside diameter pneumatic tubing, utilizing a sealing ring on the screwed plug and an internal hexagon AF 4 mounting type with a nominal tightening torque of 6 Nm at a ±20% tolerance. Operating within a pressure range of -0.095 MPa to 1.6 MPa and temperatures from -20 °C to 70 °C, it handles compressed air per ISO 8573-1:2010 [7:-:-] and allows lubricated operation while weighing 22.2 g with a pack size of 10. 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 558818. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.