#8 Flare Cap

The #8 Flare Cap is a precision aluminum fitting designed for fluid and pneumatic systems requiring secure, leak-free connections. Built to AN (Army-Navy) standards, this cap seals AN-8 ports in hydraulic lines, brake systems, fuel circuits, and pressurized applications across automotive, aerospace, and industrial equipment. The flare fitting design eliminates the need for additional sealing compounds, making it an essential component for technicians and enthusiasts who demand reliability under demanding conditions.

Manufactured from lightweight aluminum and finished in blue anodized coating, the #8 Flare Cap provides corrosion resistance and visual identification within fluid systems. The anodized surface protects against oxidation while maintaining a professional appearance in engine bays and exposed applications. The flare connection method creates a metal-to-metal seal that withstands high pressure and thermal cycling without degradation, making it superior to threaded plugs in dynamic environments. The compact 1.55 x 1.15 x 4.05 inch form factor allows installation in tight spaces typical of modern automotive and aircraft layouts.

This cap is ideal for racing applications, custom hydraulic builds, aircraft restoration, and OEM service work where AN fitting specifications are mandatory. Installation requires a wrench to seat the flare fitting firmly—hand-tight plus one-quarter turn is standard practice. Compatible with any AN-8 male flare line or port, the #8 Flare Cap is sold individually and pairs seamlessly with FRAGOLA hose assemblies and fitting kits. Verify port orientation and pressure rating of connected components before installation.