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
This Festo industrial component, part number 9421, is a bulkhead design featuring a 3.4 mm nominal width and any mounting position, supplied in a pack size of 10. It operates across an ambient and operating temperature range of -40 °C to 150 °C at pressures from 0 MPa to 1.6 MPa (0 bar to 16 bar, 0 psi to 232 psi) using compressed air as per ISO 8573-1:2010 [7:-:-], with lubricated operation possible. The unit incorporates an anodized wrought aluminum alloy connector and union nut alongside a galvanized steel nut, offering a corrosion resistance class (CRC) of 1 and VDMA24364-B1/B2-L LABS conformity while complying with RoHS standards. Pneumatic connection 1 accommodates 6 mm outside diameter pneumatic tubing or a 4 mm inside diameter barbed fitting with a union nut, and pneumatic connection 2 accommodates 6 mm outside diameter pneumatic tubing or a 4 mm inside diameter barbed fitting with a nut. 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 9421. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.