Allegheny York is a leading manufacturer and distributor of quality seals & packings for commercial, industrial & military applications. We've been serving the hydraulic and pneumatic industry for over 45 years and are dedicated to fast, reliable, hassle-free service to our customers. We have one of the largest warehouses in the world devoted to seals and packings in both METRIC and INCH sizes. Our custom seals can be molded & manufactured to your specifications; and our engineering & live customer services are readily available to assist you with every step of your order.