6AN Aluminum Tube Nut 3/8in Hard Line 2pcs BLU

The 6AN Aluminum Tube Nut 3/8in Hard Line 2pcs BLU by REDHORSE PERFORMANCE is a precision hydraulic fitting component designed for high-pressure fluid systems in tactical vehicles, aircraft, and specialized equipment platforms. These aluminum tube nuts are engineered to secure AN-spec hard lines in mission-critical applications where vibration resistance and leak-free performance are non-negotiable. Operators and technicians rely on REDHORSE fittings to maintain system integrity during extreme operational conditions, from desert deployments to high-G combat maneuvers.

This two-piece set features a 6AN port size with 3/8-inch hard line compatibility, delivering a lightweight footprint at just 0.055 lbs per pair while maintaining aerospace-grade aluminum construction. The blue anodized finish provides corrosion resistance and visual system identification—critical in field environments where technicians must quickly differentiate hydraulic lines. The tube nut design creates a compression seal against the hard line tubing, eliminating micro-leaks that compromise brake, fuel, or cooling systems under sustained pressure cycling. The 3/8-inch diameter accommodation supports flows and pressures typical in medium-duty tactical platforms without requiring oversized plumbing.

Maintenance teams, field armorers, and platform specialists benefit from having backup tube nuts on hand for rapid repairs or system reconfiguration in remote locations. These fittings are compatible with standard AN flared tubing and manifold blocks used across military, law enforcement, and civilian tactical equipment platforms. Installation requires only basic tools—hex wrench application to the nut body—making field replacement feasible without specialized equipment. Keep multiple pairs in your vehicle maintenance kit to ensure continuity of operations during deployment.