ST Alum #6 Flare- 1/4in Pipe - Bulk

The AEROQUIP ST Alum #6 Flare 1/4in Pipe fitting (FBM2004) is a straight adapter designed to connect 6 AN male ports to 1/4-inch NPT male threaded connections. Engineered from aluminum with blue anodize finish for corrosion resistance, this adapter is the standard solution for integrating NPT-threaded components into high-pressure fluid systems where AN fittings dominate the circuit. Its flared seat design ensures leak-free performance under demanding conditions.

The #6 AN designation indicates a 3/8-inch outer diameter flare, a widely used standard in aerospace and industrial hydraulic applications. The 1/4-inch NPT (National Pipe Thread) male end threads into NPT ports, providing a tapered mechanical seal that tightens as the adapter is installed. Aluminum construction keeps weight minimal—critical in aerospace, racing, and mobile equipment environments—while the blue anodize coating resists oxidation in humid and salt-air conditions. The compact 1.95 x 0.9 x 4.1-inch profile fits into tight engine bay layouts without extending into surrounding assemblies.

This adapter serves technicians and builders working on custom hydraulic systems, fuel delivery lines, brake systems, and coolant circuits where mixing AN and NPT connections is necessary. It is commonly used in performance automotive builds, aircraft maintenance, heavy equipment retrofits, and industrial fluid power installations. The straight configuration allows direct connection without elbows, reducing assembly footprint and pressure loss through the fitting. Purchase as bulk units to stock your shop or fleet maintenance department.

AEROQUIP is recognized across aerospace, military, and OEM sectors for precision hose and fitting manufacture. This adapter meets the durability and seal integrity standards expected in professional-grade fluid power systems and is compatible with standard SAE J518 AN hoses and fittings that reference the #6 AN specification.