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 12257 is an industrial component featuring an M5 external thread pneumatic connection 1 and a pneumatic connection 2 for tubing with a 4 mm outside diameter, operating with compressed air according to ISO 8573-1:2010 [7:-:-] across a pressure range of -0.95 bar to 10 bar. Constructed with a die-cast zinc and steel housing, this RoHS-compliant unit includes a sealing ring on the screwed plug, a 2 mm nominal width, and a corrosion resistance class of CRC 2 for moderate corrosion stress within an ambient temperature range of 0 °C to 60 °C. Operation with oil lubrication is possible and required for further use, while LABS conformity follows VDMA24364-B1/B2-L. 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 12257. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.