O-Rings, Hydraulic Seals, and Custom Vulcanized Seals — AS568 & Metric, ISO 9001:2015 Certified

O-Rings, Hydraulic Seals, and Vulcanized O-Rings: We Make Getting O-Rings Easy!

The O-Ring Store is a U.S. manufacturer and supplier of precision-spliced, infinite diameter vulcanized O-Rings, a Freudenberg preferred distributor, and one of the country's largest independent O-Ring distributors. We are also a distributor of Olypsys® vision measurement systems for O-Rings and gaskets. We supply OEMs, MRO teams, distributors, and retail suppliers across the U.S. and around the world with AS568 standard and metric O-Rings, hydraulic seals, oil seals, and custom sealing solutions. That means ~100 million O-Rings in stock in Clarkston, Washington, another 250 million through our factory network in your hands in under a week, and vulcanized O-Rings made right here so large diameters and odd sizes are shipped quickly. Buna-N, Viton, EPDM, Silicone, FFKM and specialty compounds, with live stock levels, technical data, and quantity pricing on every product page.

We are an ISO 9001:2015 certified O-Ring supplier, certificate 10604706, and every order ships with a free signed Certificate of Conformance listing material, size, and cure lot. Qualified customers never get an O-Ring older than five years without their approval. For help sizing a seal, picking a compound, cross-referencing a part number, or checking chemical compatibility, visit The O-Ring Handbook or call 208-413-6377. Our AI phone system answers with stock and product information, takes a message or puts you through to your account representative. Email: sales@theoringstore.com