#10 Steel To -08 Reducer Fitting

The #10 Steel to -08 Reducer Fitting (FCM2421) is a straight adapter designed to connect AN10 female ports to AN8 male ports in hydraulic and fluid transfer applications. Constructed from steel with zinc plating for corrosion resistance, this reducer fitting delivers reliable performance in high-pressure systems where secure, leak-free connections are critical.

This fitting accommodates the transition between larger 10 AN (approximately 5/8-inch) and smaller 8 AN (approximately 1/2-inch) line sizes, making it essential for custom hydraulic circuits, fuel systems, and cooling loops where port sizes differ. The zinc-plated steel construction resists oxidation in varied environments, while the straight-through design maintains flow integrity without unnecessary pressure drop. The compact form factor—0.19 lbs and measuring 3.5 x 1.85 x 5.2 inches—fits easily into tight engine bays and equipment frames without bulk.

AN fitting reducers are indispensable in motorsports, aerospace, industrial hydraulics, and off-road vehicle builds where system redesigns or component swaps require step-down connections. Technicians and builders working with aircraft engines, race engines, custom hydraulic platforms, and emergency response equipment rely on precision-engineered reducers to maintain system integrity under pressure. This AN10-to-AN8 adapter supports applications ranging from fuel delivery and brake systems to pneumatic and transmission cooling circuits.

Steel AN fittings with zinc plating remain the standard across OEM and aftermarket hydraulic work because they balance strength, corrosion resistance, and cost-effectiveness. Whether you're restoring a classic aircraft, building a custom race car, or upgrading industrial equipment, a reliable steel reducer fitting ensures your system operates without leaks or premature failure.