#12flare/#12flare Union

The AEROQUIP #12 flare union adapter is a critical component for high-pressure hydraulic and pneumatic systems that demand reliable, leak-free connections. Designed as a 12 AN male-to-male straight fitting, this adapter bridges two 12 AN ports without directional bends, making it ideal for systems where space is constrained or where direct alignment is required. Whether you're assembling aerospace hydraulic lines, automotive performance fuel systems, or industrial fluid transfer applications, this union ensures secure, repeatable connections under demanding pressures and temperatures.

Manufactured from aluminum and finished in blue anodized coating, the #12 flare union combines lightweight construction with corrosion resistance and visual identification. The flare fitting design creates a mechanical seal by compressing a pre-flared tube end against a 37-degree cone, eliminating the need for separate ferrules and delivering predictable holding power across thousands of pressure cycles. Aluminum construction reduces weight in mobile and aerospace applications while the anodized finish protects against oxidation and provides durability in harsh environments. The straight male-to-male configuration allows two female-ended hoses or ports to connect directly without additional adapters or elbows.

Technicians and engineers in automotive, aviation, and fluid power systems rely on AEROQUIP adapters for their proven performance and compatibility with standard 12 AN hose assemblies and port threads. This union is sold individually and installs quickly with standard wrenches—no special tools required. Installation requires properly flared 12 AN tubing on both connection points; verify flare dimensions and thread condition before assembly to ensure optimal seal integrity. Compatible with all standard 12 AN female ports and pre-flared hose ends, this fitting integrates seamlessly into existing hydraulic and pneumatic networks.