#3 Bulkhead Nut - Steel 3/8-24

The FRAGOLA #3 Bulkhead Nut – Steel 3/8-24 (MPN 592403) is a precision-engineered AN fitting component designed for high-pressure fluid systems in motorsports, aerospace, and industrial hydraulic applications. This steel construction bulkhead fitting nut provides the secure thread engagement required in 3 AN (3/16-inch) bulkhead assemblies, delivering reliable containment of fuel, oil, coolant, and hydraulic lines under demanding operational conditions.

Manufactured from steel with a zinc oxide finish, this bulkhead nut resists corrosion while maintaining dimensional stability across temperature and pressure cycling. The 3/8-24 thread specification ensures compatibility with standard AN bulkhead fittings and housings, providing mechanical integrity in systems where vibration, thermal expansion, and pressure surges are routine stressors. The compact 1.5-inch length and 0.7-inch diameter profile fit standard bulkhead configurations without requiring custom adapters or modifications to existing manifold designs.

This component is essential for builders and technicians constructing or maintaining race engines, custom fuel delivery systems, aircraft hydraulic lines, and industrial equipment where AN-standard fittings are specified. The individual unit format allows incremental stocking or replacement without bulk purchasing, making it ideal for repair shops, fabrication facilities, and serious enthusiasts maintaining critical fluid systems.

FRAGOLA bulkhead fittings are recognized in high-performance motorsports for consistent thread engagement and leak prevention. Pairing this nut with matching FRAGOLA bulkhead bodies ensures system coherence and reduces troubleshooting complexity during assembly and service intervals.