Alm Female Weld Bung 16AN ORB

The Alm Female Weld Bung 16AN ORB from MOROSO is a precision-engineered aluminum fitting designed for high-performance fuel system and fluid line applications. This weld-on bung serves as a termination or connection point in custom fabrication projects, particularly in racing, performance automotive, and fluid transfer systems where secure, leak-free unions are non-negotiable. Engineered for durability and reliability, this female adapter accommodates 16 AN (SAE J518 Code 61) O-ring boss connections and is ideal for builders and technicians who demand professional-grade components.

Constructed from aluminum and finished in natural (unplated) condition, the Alm Female Weld Bung 16AN ORB features a weld-on design that integrates directly into custom tanks, manifolds, and fabricated assemblies. The female O-ring boss (ORB) configuration accepts standard AN fittings with integral O-ring seals, eliminating the need for separate sealing washers and providing consistent, repeatable connections. The weld-on mounting method creates a permanent, structurally sound joint that withstands pressure cycles and vibration in demanding motorsports and industrial environments. Aluminum construction keeps weight minimal while delivering adequate strength for fuel, coolant, and brake fluid applications.

This fitting is essential for custom fabricators, racing teams, and performance engine builders assembling fuel systems, catch cans, and fluid management circuits. Installation requires welding to the base component—typically a tank or manifold—followed by connection of AN-standard hoses or tubing to the female ORB port. The natural aluminum finish is compatible with most fluid types, though anodizing or protective coating may be recommended for corrosive environments. Its compact footprint (3.7 x 1 x 4.95 inches) and lightweight design (0.08 lbs) make it suitable for space-constrained installations where every ounce and inch counts.