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 557027 is a double-acting industrial component based on the ISO 21287 norm, featuring a 1/2" piston diameter, 0.75 in stroke, and internal 4-48 UNF-2B piston rod thread. This unit operates within a pressure range of 14.5 psi to 145 psi using compressed air per ISO 8573-1:2010 [7:4:4] and incorporates elastic cushioning rings at both ends with position sensing via proximity switch. It delivers a theoretical force of 15.3 lbf advancing and 11.5 lbf retracting at 6 bar, while maintaining moderate corrosion stress resistance (CRC 2) across an ambient temperature range of -4 °F to 176 °F. 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 557027. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.