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 3998922 is a square industrial component based on norms EN 60947-5-2, ISO 5211, and VDI/VDE 3845. This component features RCM compliance, CE marking per EU EMC and RoHS directives, and UKCA marking to UK instructions for EMC and RoHS. Certified by CSA 263311, it includes extensive explosion prevention and protection ratings for Class I, II, and III Divisions 1 and 2, Zones 1, 2, and 21, along with specific gas and dust ignition protection types. Submit the exact part number, quantity, and application requirements to receive 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 3998922. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.