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 4165854 is a 20 mm wide industrial component featuring a direct, manually actuated 3/2 open/closed monostable valve function with a plate seat structural design and mechanical spring reset. It delivers a normal nominal flow rate of 870 l/min through G1/4 pneumatic working ports across an operating pressure range of -0.95 bar to 10 bar (-0.095 MPa to 1 MPa) with adjustable exhaust air function, zero overlap lap, and a soft sealing principle. Certified for ATEX Zone 1, Zone 2, Zone 21, and Zone 22 explosion prevention and protection, this reversible component operates with ISO 8573-1:2010 [7:-:-] compressed air and supports oil lubrication. 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 4165854. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.