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 557143 is a double-acting industrial component featuring a 2.5-inch piston diameter, a 2-inch stroke, and an external 1/2-20 UNF-2A piston rod thread based on the ISO 21287 norm. This structural design incorporates a profile barrel, piston rod at one end, position sensing via proximity switch, and elastic cushioning rings at both ends for an end-position impact energy of 0.959 ft-lbf. Operating within a pressure range of 14.5 psi to 145 psi, the unit utilizes compressed air conforming to ISO 8573-1:2010 [7:4:4], supports optional oil lubrication, and delivers theoretical forces of 393 lbf retracting and 420 lbf advancing at 6 bar. Built with a moderate corrosion resistance class of 2 and an ambient temperature range of -4 °F to 176 °F, this component meets VDMA24364-B1/B2-L LABS conformity for flexible mounting in any position. Submit the exact part number, quantity, and application requirements to receive a formal 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 557143. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.