#10 AN Plug

The #10 AN Plug from FRAGOLA is a precision hydraulic and pneumatic fitting designed to seal and terminate AN (Army-Navy) port lines in high-performance fuel systems, cooling circuits, and pressurized applications. Built for motorsports enthusiasts, custom fabricators, and professional mechanics, this aluminum plug delivers reliable port closure without the need for continuous flow or secondary components. Its compact hex-head design enables fast installation and removal using standard wrenches, making it ideal for prototyping, maintenance, and system reconfiguration.

Machined from lightweight aluminum and finished with blue anodizing, the #10 AN Plug provides corrosion resistance while maintaining minimal weight—critical in racing and off-road applications where every fraction of a pound matters. The hex-head design allows secure engagement with standard sockets and wrenches, preventing rounding and ensuring consistent torque application across repeated cycles. The anodized surface also improves visibility in engine bays and reduces heat transfer, extending the service life of adjacent components in thermally demanding environments.

This fitting is essential for custom fuel delivery systems, turbo coolant lines, and modular hydraulic circuits where unused ports must be sealed against fluid loss and contamination. Technicians and kit builders benefit most when reconfiguring existing systems or building redundant safety lines that require intermittent access. The #10 AN standard ensures compatibility with industry-standard hose, barb, and swivel fittings across all major motorsport and industrial applications, simplifying sourcing and system integration.