#10 Flare #10 Flare Union Black

The #10 Flare Union Black from Aeroquip is a critical hydraulic and pneumatic fitting designed for high-pressure fluid line connections in automotive, motorsports, and industrial applications. Whether you're building a custom hydraulic brake system, fabricating a fuel delivery circuit, or assembling a high-performance cooling loop, this flare union delivers the leak-free performance demanded by professionals who refuse compromise. The black finish indicates corrosion-resistant plating, essential for durability in engine bays, undercarriage environments, and salt-exposed conditions.

This #10 flare union features a double-ferrule compression design that creates a metal-to-metal seal without relying on thread sealant tape, eliminating the risk of particle contamination in sensitive hydraulic systems. Aeroquip's forged steel construction ensures the fitting withstands pressure spikes during hard acceleration, engine startup, and dynamic braking events. The 37-degree flare compatibility (SAE standard) ensures proper mating with industry-standard hoses, tubing, and component ports, while the compact 1.75-inch body width fits tight engine compartments and frame rails where space is at a premium.

Mechanics, fabricators, and DIY enthusiasts building custom hydraulic systems—from adjustable suspension setups to remote reservoir brake upgrades—trust Aeroquip unions for their reliability and longevity. This fitting is ideal for applications requiring vibration resistance and thermal stability, particularly in race cars, off-road vehicles, and heavily modified street machines. Installation requires proper flare tools and technique; ensure all mating ports feature matching #10 female flare threads before assembly to guarantee a secure, lasting connection.