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 557148 is an ISO 21287 compliant double-acting industrial component featuring a 2 1/2-inch piston diameter and a 1-inch stroke with a 3/8-24 UNF-2B internal piston rod thread at one end. Operating on compressed air according to ISO 8573-1:2010 [7:4:4] within a 14.5 psi to 145 psi pressure range, this unit utilizes elastic cushioning rings at both ends to manage 0.959 ft-lbf of end-position impact energy. The profile barrel design supports any mounting position, position sensing via proximity switch, and optional oil lubrication, delivering a theoretical advancing force of 420 lbf and a retracting force of 393 lbf at 6 bar 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 557148. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.