Allegheny York Company

Over 45 years of Quality Sealing Components!

For over 45 years, Allegheny York Company has been a leading manufacturer and distributor of high quality hydraulic & pneumatic seals, gaskets, packings & components for commercial, industrial and military applications. We are dedicated to fast, reliable, hassle-free service and pride ourselves on our knowledgeable and friendly staff that is always available to assist you with every step of the ordering and/or manufacturing process. Our experienced (bi-lingual) customer service agents take the time to get to know our customers and their needs. We promise you will never get an outsourced call service or automated answering system when you call AY Seal & Packing. Our customer’s satisfaction is paramount so we will always take the extra steps necessary to establish a positive working relationship that our customers can rely on and look forward to.
We have one of the largest warehouses in the world devoted to seals and packings in both Metric & Standard sizes. Because of our massive inventory, we boast fewer back-orders, higher fill rates and faster turn-around times. AY is well known for stocking those hard-to-find sealing components and even our competitors frequently turn to us for the obscure seals!
Our expedient shipping department is meticulous in ensuring your order is accurate and arrives promptly. We are equipped to offer special packing & labeling, including bar coding. We offer multiple delivery options and carriers including same day, next day, ground, air and, as always, JIT (Just-In-Time) shipping worldwide!Worldwide Shipping
Engineering & design services are readily available from some of the most knowledgeable and experienced sealing engineers in the field. They will guide you through the entire process to provide the optimum customized sealing solution for your project. Our vast engineered profile libraryEngineered Profile Library and wide assortment of available materials Available Sheet Materialsmakes it nearly effortless to complete your customized repair project.
Unsure what your specifications are due to damaged or indiscernible component remnants? Let our “seal detectives” find a match for you! Just send in a photo Seal Identification photoof the application, cylinder and seal remnants or mail the pieces to us and we will solve your sealing riddle!
AY Seal & Packing is perpetually investing in state-of-the-art manufacturing equipment to ensure we are able to provide our customers with more high quality options, more diversification, more lead-time control and more satisfaction! From rubber compression pressesRubber Compression Press, CNC machinesCNC Presses, vacuum vulcanizing presses Vacuum Vulcanizing Press and plastic injection molding equipment Plastic Injection machinesto gasket trimmer Gasket Trimmer, die cut machines, a 5 hopper plastic drying system 5 Hopper Plastic Drying System, in-house tooling In-house toolingand much more! Whether you need wipers, seals, backup rings, bearings, guide rings or plastic components, AY will always strive to meet your demands all while utilizing our advanced rapid prototyping technology.
Size is never an issue at AY. Our innovative technology affords us the ability to produce piston cups up to 36” and vee packing & custom components up to 38”. We’re always one step ahead of the competition to give our customers exactly what they need the most!
Whether you prefer to browse our newly updated seal catalog AY Seal Catalog in print to fax, e-mail or phone your order or if you do all of your business with ease from our secure online shopping siteShop AY now!, AY Seal & Packing is ready to assist you right away!

We help industries solve sealing problems. The marketplace needed easier access to a broader range of seal inventory than was generally available, expert advice, and extensive manufacturing capabilities. We listened to customers and put it all under one roof. We’ve developed one of the largest inventories of hydraulic, pneumatic, and general industrial sealing components in the nation, operated by a team of friendly seal experts, and a factory that molds and machines both plastic and rubber. Custom, same-day sealing solutions are routine for us. AY Seal & Packing provides its employees with rewarding, secure employment in a can-do culture. Our employees take an interest in our customers, and we take an interest in our employees.

Call us first! Are you routinely back-ordered when buying your hydraulic seals? Many repair shops and industrial companies alike operate within critical time constraints that rely heavily on a rapid response to their sealing needs. When their components are out of stock, they make a second call, or a third, forcing them to resign to order a part that may be in stock elsewhere but may falter in quality. This prolonged process requires time (money) and perhaps a second shipment (more money) all while holding profit potential hostage.


  • AY has a 98% Fill Rate - We have one of the largest inventories of off-the-shelf seals, gaskets & packings in the county. Even the obscure parts not readily available elsewhere!
  • Our knowledgable staff will assist you to find the right component for your needs or find the best alternative to get you back to turning profits faster.
  • Compare your cost! Our exclusive AY discounts are often lower than our competitors!
  • Analyze your shipping costs using our UPS account. In 2016, AY negotiated a deep discount with UPS which we passed on to our customers!

Save TIME and MONEY! When quality & reliability matter most, Call AY First!