#10 Male Weld Bung Aluminum

The FRAGOLA #10 Male Weld Bung Aluminum (part number 497110) is a weld-on adapter designed for hydraulic and fuel line systems that require secure, permanent AN connections. This aluminum weld bung provides a 10 AN male thread port with a 1-inch step design, engineered to integrate directly into tank, manifold, or panel installations where a male fitting is the termination point. The weld-on construction delivers a leak-free, vibration-resistant connection suitable for high-pressure applications in motorsports, aircraft, and industrial fluid transfer systems.

Constructed from aluminum in its natural finish, this bung resists corrosion in most operating environments while remaining lightweight—critical in race and aviation applications where mass reduction matters. The 1-inch step dimension establishes the weld flange footprint, allowing the fitting to penetrate the substrate while maintaining sufficient surface area for a solid weld joint. The 10 AN male thread (0.625-inch diameter) accommodates standard -10 hose fittings, braided lines, and adapters, making this component highly compatible with existing AN-specification fluid systems. Its compact profile (1.45 x 1.2 x 4.1 inches) fits tight mounting spaces without requiring additional adapter hardware.

This weld bung is ideal for builders and technicians fabricating custom fuel tanks, coolant reservoirs, and pressurized fluid manifolds. It serves applications ranging from high-performance street and drag racing engines to aircraft and marine systems where reliability and code compliance are non-negotiable. The weld-on design eliminates thread-stripping risk and provides superior holding strength compared to threaded inserts, particularly in aluminum substrates prone to galling. FRAGOLA's precision machining ensures thread concentricity and dimensional consistency, critical for maintaining system integrity under vibration and thermal cycling.