#3 Tube Sleeve

The FRAGOLA #3 Tube Sleeve is a precision aluminum fitting designed for secure, leak-free connections in fluid transfer systems. Engineered to accommodate 3/16-inch tubing with 3 AN specifications, this blue anodized sleeve provides both structural integrity and corrosion resistance in high-pressure and demanding environments where reliability is non-negotiable.

FRAGOLA tube sleeves are manufactured to exacting tolerances and serve as critical compression components in fuel systems, coolant lines, and hydraulic circuits found in performance vehicles, industrial equipment, and specialty applications. The aluminum construction with blue anodized finish resists oxidation and discoloration, while the 3 AN sizing ensures compatibility with standard SAE AN fittings. Each sleeve functions as the compression ferrule that creates a seal between tubing and fitting body, making proper installation technique essential to system performance.

Technicians and system builders rely on FRAGOLA sleeves for drag racing fuel systems, custom automotive builds, marine installations, and industrial hydraulic applications where vibration resistance and pressure containment are paramount. Whether replacing worn compression components or assembling new tubing runs, sourcing OEM-equivalent sleeves ensures the integrity of the entire AN line assembly. This single sleeve fits the #3 AN (3/16-inch) tube specification.

FRAGOLA has established market credibility for manufacturing precision hose and fitting components to aerospace and motorsports standards. The #3 Tube Sleeve is a consumable component—inspecting and replacing sleeves during system service prevents leaks and system failures that can result from worn or degraded compression surfaces.