Alm Female Weld Bung 10AN ORB

The MOROSO Alm Female Weld Bung 10AN ORB is a precision aluminum weld-on fitting designed for high-performance fuel system plumbing and custom hydraulic applications. This 10 AN female O-ring port adapter provides a permanent welded connection point where traditional threaded fittings are impractical or impossible to install. Built from lightweight aluminum and finished in natural state, it delivers reliable sealing through an O-ring design that meets industry hydraulic port standards.

The 10 AN female O-ring cavity accommodates standard 10 AN male connectors, hoses, and adapters, ensuring compatibility with professional-grade fuel system and hydraulic component networks. The weld-on construction eliminates vibration-related loosening that can occur with threaded bungs in high-performance environments, making it ideal for racing fuel cells, custom tank fabrication, and motorsport hydraulic systems. Aluminum construction keeps weight to a minimum—critical in competition vehicles where every pound matters—while maintaining structural integrity under system pressure and thermal cycling.

This fitting suits fabricators, motorsport mechanics, and custom builders who demand permanent, leak-free connections in fuel cell installations, transmission cooler lines, and custom reservoir plumbing. Weld-on bungs are the standard in professional racing and off-road fabrication because they eliminate the risk of connection failure under sustained pressure and high-vibration conditions. MOROSO is recognized for precision fuel system components trusted across circle track racing, drag racing, and performance automotive applications.

When specifying bung fittings for tank and system fabrication, matching both the port size (10 AN in this case) and connection style (female O-ring) to your hose and adapter inventory is essential to ensure proper flow rates and eliminate leaks. This single-unit bung allows precision port installation during tank wall or manifold welding, with the fitting body removed during the weld process and reinstalled after cooling to protect the O-ring seal.