Stat-O-Seals 9/16in -6AN 2pk

The EARLS Stat-O-Seals 9/16in -6AN 2pk are precision sealing washers engineered for high-pressure fluid line applications in motorsports, aviation, and industrial hydraulic systems. These aluminum washers with integrated rubber O-rings create a reliable, reusable seal at AN-style fittings without requiring Teflon tape or additional sealant compounds. The 0.563-inch inner diameter matches -6AN line specifications, providing a direct, drop-in solution for hydraulic system assembly and maintenance.

Each Stat-O-Seal features a pre-installed rubber O-ring bonded to a precision-machined aluminum washer, eliminating the need to source and assemble components separately. This paired design reduces assembly time and minimizes the risk of O-ring misplacement or damage during installation. The aluminum construction balances weight savings with durability, while the molded rubber provides compression-set resistance across a wide temperature range—essential for systems exposed to thermal cycling or sustained pressure variations. Two seals per package allow for dual-line installations or spare inventory management on rebuild projects.

Technicians, fabricators, and system builders working with AN-style plumbing in fuel systems, cooling circuits, and brake applications benefit from the consistency and repeatability Stat-O-Seals provide. Whether rebuilding a transmission cooler line, assembling a custom fuel rail, or performing preventive maintenance on vintage or high-performance equipment, these washers offer a proven alternative to traditional crush washers that risk permanent deformation and leak potential after single use.

Stat-O-Seals are widely recognized in the automotive performance and aviation communities as a reusable, environmentally responsible upgrade from disposable crush washers. The -6AN size accommodates standard 9/16-inch line fittings, making these seals compatible with most OEM and aftermarket hydraulic components that follow AN specifications and SAE J518 standards.