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 8066443 is a single-acting industrial component utilizing a gear rack and pinion structural design with a size 40 valve actuator and a 90-degree swivel angle. It features an F0507 flange hole pattern, a 16 mm shaft connection depth, an ISO 5211 standard connection for valves, and a VDI/VDE 3845 NAMUR-compliant valve connection operating at a nominal pressure of 6 bar. Certified as a safety device to ISO 13849 and IEC 61508, the unit incorporates a spring assembly to switch to a defined safety position upon air exhaustion, supporting applications up to SIL 2 in low demand mode and SIL 1 in high demand mode, or SIL 3 in a redundant architecture. 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 8066443. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.