Earl's Performance BSPP to AN Adapter Fittings

Earl's Performance BSPP to AN Adapter Fittings are precision-machined components engineered to bridge British Standard Pipe Parallel (BSPP) threaded ports with AN (Army-Navy) standard plumbing systems. Whether the application involves an engine swap with imported components, a custom high-performance fluid circuit, or integration with aftermarket accessories using BSPP-threaded ports, this adapter line provides a clean, reliable connection between two otherwise incompatible thread standards.

Key Features:

• Precision-machined construction ensures accurate thread engagement and consistent, leak-free sealing across all configurations
• Adapts BSPP straight-thread male ports to AN male flare connections for seamless cross-standard system integration
• Lightweight aluminum construction with an anodized finish for corrosion resistance and a clean, professional appearance
• Viton® O-ring sealing for broad compatibility with fuels, synthetic lubricants, and a wide range of automotive fluids
• Suitable for fuel, oil, coolant, and other high-performance fluid circuit applications
• Legal for use on emissions-controlled vehicles, non-emissions vehicles, and racing applications
• Available in multiple thread size configurations to accommodate a wide range of AN plumbing setups
• Fully compatible with Earl's broader braided hose and fitting ecosystem

Earl's Performance Plumbing got its start supplying military aircraft surplus plumbing components to the racing industry, bringing aerospace-grade fluid transfer technology to the automotive performance market. Trusted by professional race teams across motorsport disciplines worldwide — including Formula 1, IndyCar, and touring car series — Earl's components are engineered to meet the demands of competition while remaining equally practical for street performance and custom builds. When your project requires connecting components that operate on different thread standards, Earl's BSPP to AN Adapter Fittings deliver the precision and reliability that the job demands.