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Our O-Ring Nominal Inside 15-1/2 Dia PK166 is a high-quality seal that is perfect for numerous applications across multiple industries. Its round cross-section shape ensures that it can fit into tight spaces, making it ideal for use in hydraulic and pneumatic systems. With a hardware material construction, this O-ring is durable and long-lasting, providing reliable sealing power in demanding environments. Whether you need it for chemical processing or aerospace applications, this O-ring will provide superior performance and value. Make sure to check out our huge selection of Gaskets & O-Rings today!