#3 Tube Nut 6 Pk

The #3 Tube Nut 6 Pk is a precision-engineered fitting designed for marine fuel and fluid transfer systems where reliability and leak-free performance are non-negotiable. Built for anglers, boat owners, and water enthusiasts who demand durability in demanding saltwater and freshwater environments, this six-pack of AN fittings delivers the dependable connections that keep engines running and systems pressurized when you're far from shore. Whether you're maintaining a performance boat, upgrading fuel lines, or repairing critical hydraulic connections, proper tube nuts are the foundation of a safe, efficient marine system.

Each #3 Tube Nut accommodates 3/16-inch tubing and features aerospace-grade aluminum construction with blue anodized finish—a corrosion-resistant coating specifically selected for marine applications where oxidation and saltwater exposure are constant threats. The AN (Army-Navy) standard ensures compatibility across fuel systems, oil lines, and hydraulic circuits, with the hex design providing secure, wrench-tight engagement that won't loosen under vibration. The anodized aluminum resists seawater corrosion far better than bare aluminum, while remaining lightweight enough for fuel-efficient rigging without sacrificing structural integrity.

Boaters upgrading fuel systems, performance engine builds, or hydraulic steering setups rely on AN-standard fittings to meet federal marine safety codes and prevent catastrophic leaks underway. The six-pack format is ideal for complete fuel line rebuilds or as spares for remote expeditions where replacement parts are scarce. Compatible with all standard 3/16-inch tubing and AN-rated hoses, the #3 Tube Nut integrates seamlessly into existing systems or new custom installations—simply pair with matching AN male and female connectors for a complete, certified connection.