#3 STRAIGHT BULKHEAD - S TEEL

The Fragola #3 Straight Bulkhead Steel fitting (FRG583203) is a precision hydraulic and fuel line connector designed for high-pressure fluid transfer applications in racing, motorsports, and aerospace environments. This AN (Army-Navy) standard fitting connects two #3 AN male lines through a bulkhead panel or firewall, using steel construction with cadmium plating for corrosion resistance and reliable long-term performance in demanding conditions.

The #3 AN specification means each port accommodates hose or tubing with a nominal 3/16-inch inner diameter, handling typical fuel system pressures and brake line applications across street performance and competition vehicles. Steel construction provides superior strength compared to aluminum alternatives, particularly valuable in engine bay environments where thermal cycling and vibration are constant factors. The cadmium finish resists corrosion from moisture and salt exposure, critical for longevity in marine and coastal racing applications. The straight bulkhead design (male-to-male configuration) simplifies installation through firewall penetrations, eliminating the need for separate adapter fittings.

This fitting serves restorers, drag racers, vintage car builders, and fuel system fabricators who demand AN-standard reliability. It's essential for custom fuel cell installations, custom brake line routing, and any application requiring pressure-rated bulkhead penetrations. Fragola is recognized in the motorsports fluid systems industry for consistent quality and tight tolerances that meet SAE J518 standards.

When sourcing AN bulkhead fittings, proper thread seal (using PTFE tape or pipe sealant rated for fuel) is essential to prevent leaks under pressure. The compact design—under 4 inches long—fits tight engine compartment layouts without requiring additional offset or adapter space.