P/C #6 Flare Cap

The RUSSELL P/C #6 Flare Cap (Part #661963) is an aluminum flare fitting cap designed for high-pressure hydraulic and pneumatic systems, particularly in automotive applications. It is ideal for those building custom fuel systems, upgrading brake lines, or fabricating competition-grade suspension setups, ensuring reliable sealing at critical connection points.

Manufactured from aircraft-grade aluminum, the P/C #6 flare cap features a tapered design that matches standard #6 flare fittings (3/8-inch diameter). Its internal geometry is engineered to provide a consistent metal-to-metal seal without requiring additional sealant tape, which simplifies installation during engine bay assembly.

Mechanics and fabricators restoring vintage performance cars or constructing custom fuel systems can rely on the RUSSELL AN caps to prevent leaks and system failures. This cap is compatible with any #6 AN flare-threaded fitting and works across various applications, including fuel, oil, coolant, and brake systems.