JB N5-12 3/4" SAE Fitting Cap

The JB Industries N5-12 3/4" SAE Fitting Cap is a mission-critical component for maintaining system integrity in high-pressure refrigeration and air conditioning applications. Expertly machined transitions and premium C360 brass construction ensure this heavy-duty flare cap provides a dependable metal-to-metal seal on any 3/4 inch SAE flare connection. Designed to withstand extreme environments, it is rated for vacuum and high-pressure service up to 5,000 psi, depending on the tubing material and system conditions. Whether you are sealing off a manifold port or protecting a brass flare fitting in the field, this cap minimizes the risk of mechanical pull-out and refrigerant loss. Its versatile design allows for successful integration with copper, brass, aluminum, and steel tubing, making it a standard in every veteran technician’s van. By utilizing SAE J513 compliant geometry, the N5-12 ensures consistent performance and thread alignment, even after repeated assembly and disassembly during routine HVAC system maintenance.

• Heavy-Duty Brass Construction: Machined from high-tensile C360 brass for superior corrosion resistance and long-term durability in the field.
• Universal Tubing Compatibility: Engineered for use with 3/4 SAE flare connections on copper, aluminum, steel, and plastic tubing.
• High Pressure Resilience: Capable of handling vacuum and pressures up to 5,000 psi, ensuring reliability in demanding ACR environments.
• Reusable Metal Seal: Precision-tapered 45-degree flare provides a secure seal that can be disconnected and reattached without compromising performance.

• Does this cap require an O-ring or gasket to seal? No, this is a standard brass flare cap designed for a metal-to-metal seal against a 45-degree flare seat.
• Can this be used on 3/4" NPT threads? No, this cap is specifically threaded for 3/4" SAE Flare (1-1/16-14 thread) and is not compatible with pipe threads.
• Is it suitable for high-vibration environments? Yes, the heavy-wall design handles vibration well; however, ensure proper torque is applied to maintain the flare seal under constant mechanical stress.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.