Alum #10 Locknut

The AEROQUIP Alum #10 Locknut (FCM2104) is a precision aluminum bulkhead fitting nut designed for 10 AN (JIC 37-degree) hydraulic and pneumatic systems. This blue anodized locknut provides secure, leak-free connections in high-pressure fluid power applications where reliable fastening is critical. The aluminum construction delivers lightweight performance without sacrificing strength, making it ideal for aerospace, automotive, marine, and industrial hydraulic systems.

Manufactured to AEROQUIP specifications, this 10 AN locknut is engineered for use with standard JIC bulkhead fittings and compatible hose assemblies. The blue anodized finish provides corrosion resistance and helps identify the component within system layouts. At just 0.03 lbs, the nut adds minimal weight to assemblies while maintaining the integrity required for pressure applications. The compact dimensions ensure fitment in tight spaces common in aircraft, racing engines, and marine propulsion systems.

This locknut is specified by technicians and engineers who demand OEM-level component quality for pressure-tested systems. Whether assembling custom hydraulic lines for motorsports, maintaining aerospace fluid systems, or building marine cooling circuits, the AEROQUIP #10 locknut delivers the thread security and sealing reliability required where leaks are not an option. Each unit ships ready for immediate installation into 10 AN bulkhead fittings.

Sold individually, this part is an essential spare for maintenance kits and replacement repair packs. AEROQUIP components are widely recognized in professional hydraulic and pneumatic service networks, ensuring availability of compatible components and documented performance history across decades of field deployment.