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 3660 is a directly controlled 3/2-way closed monostable industrial component utilizing a piston seat structural design with a 2 mm nominal width and an M5 pneumatic working port for connection 1 and connection 2. Featuring a die-cast zinc housing with NBR seals, this 28 g unit delivers a normal nominal flow rate of 80 l/min at an operating pressure ranging from -0.95 bar to 8 bar, and includes ATEX explosion prevention and protection certifications for Zones 1, 2, 21, and 22. It operates within an ambient temperature of -10 ÞgC to 60 ÞgC using compressed air as per ISO 8573-1:2010 [-:-:-] requiring oil lubrication, VDMA24364-B1/B2-L LABS conformity, an actuating force of 23 N, and through-hole mounting. 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 3660. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.