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 8066444 is a single-acting gear rack/pinion industrial valve actuator featuring a size 80 actuator, an F0507 flange hole pattern, and a 90-degree swivel angle with an end-position adjusting range of -5 degrees to 5 degrees at both 0 degrees and the nominal swivel angle. Operating at a nominal pressure of 3 bar (43.5 psi) with an operating range of 2 bar to 8 bar (29 psi to 116 psi) and a 24 bar burst pressure, this safety device incorporates a spring assembly to switch to the defined safety switching position when compressed air is switched off and the spring chamber is exhausted. It includes an ISO 5211 standard valve connection, VDI/VDE 3845 (NAMUR) valve connection conformity, VDI/VDE 3845 Size AA 1 positioner connection, a 19 mm shaft connection depth, closes to the right, supports any mounting position, and is certified for safety functions under ISO 13849 and IEC 61508 for use up to SIL 2 in low demand mode, SIL 1 in high demand mode, and SIL 3 in redundant architecture. Submit the exact part number, quantity, and application requirements to receive a formal 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 8066444. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.