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 564840 is an industrial component featuring an exhaust air flow control non-return function with manual actuation via a slotted screw. This screw-in unit utilizes a QB-5/32 pneumatic connection 1 and a 10-32 UNF-2A pneumatic connection 2, constructed with a nickel-plated brass screwed plug weighing 0.35 oz. It delivers a standard nominal flow rate of 7.63 cfm in the flow control direction and operates within a pressure range of -13.8 psi to 116 psi across an ambient temperature range of 32 °F to 140 °F. Submit the exact part number, quantity, and application requirements to request 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 564840. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.