-3 Aluminum Plugs 20pk

The -3 Aluminum Plugs 20pk are essential protective caps designed for AN (Army-Navy) threaded fittings commonly found in hydraulic, fuel, and pneumatic systems across automotive, racing, and industrial applications. These dust plugs seal unused -3 AN ports to prevent contamination from debris, moisture, and oxidation—critical for maintaining system integrity and preventing costly damage during assembly, storage, or maintenance. Available in a convenient 20-pack, this set provides complete coverage for projects involving multiple AN connections.

Manufactured from lightweight aluminum with a natural finish, these plugs combine corrosion resistance with durability in high-vibration environments. The -3 AN specification (3/16-inch nominal port size) ensures a precision fit on standard AN threaded ports, creating a reliable seal without requiring additional tools or fasteners. Aluminum construction keeps weight to a minimum—ideal for weight-conscious racing and aerospace applications—while maintaining structural integrity and thermal stability across a wide temperature range.

Professionals in motorsports, custom fabrication, hydraulic systems, and emergency repair rely on -3 AN plugs to protect investment in high-performance fluid systems. The 20-pack format is perfect for shops, restoration projects, or builds with multiple hydraulic circuits, eliminating the need for multiple orders. Simply thread plugs onto exposed -3 AN ports and tighten hand-snug; no thread sealant is required. Compatible with all standard AN -3 ported components including fittings, valves, and manifolds across domestic and import platforms.