Eaton 3300X2 Brass Pipe Coupling 1/8 in Fnptf 1200 Psi

Product Description

The EATON 3300X2 is a straight brass pipe coupling with 1/8 inch FNPTF female threads on both ends, rated for a maximum working pressure of 1200 psi. It is designed for use in fluid and pneumatic plumbing systems where a reliable, threaded inline connection is required. The FNPTF thread standard provides a pressure-tight mechanical seal without relying solely on thread sealant, making this coupling well-suited for higher-pressure applications. At 0.03 pounds, the fitting is compact and lightweight. Licensed plumbers, pipefitters, and industrial service technicians are the typical installers for this type of component.

This coupling is used in residential, commercial, and light industrial piping systems where 1/8 inch female NPT connections are required. Its straight configuration makes it a direct inline connector for joining two threaded pipe or hose ends. The brass construction resists corrosion in water, air, and many hydraulic fluid services. The fitting is suitable for systems operating between -65 degrees F and 250 degrees F, covering a broad range of service environments including HVAC, plumbing, and compressed air lines.

Key Features

• FNPTF female threads on both ends for a pressure-tight mechanical connection
• 1200 psi maximum working pressure rating
• Operating temperature range from -65 degrees F to 250 degrees F
• Straight fitting shape for direct inline pipe joining
• Brass construction for corrosion resistance in water, air, and fluid service
• Meets SAE 130138 standards

Compatibility

Designed as an OEM-style replacement coupling for piping systems using 1/8 inch FNPTF female threaded connections in fluid, pneumatic, or compressed air applications.

Installation Notes

Installation is performed by a licensed plumber or pipefitter following applicable IPC or local plumbing code requirements. Depressurize and isolate the system completely before removing any existing fittings or installing this coupling. FNPTF threads are designed to seal on the thread form itself, but consult system requirements to confirm whether thread sealant or tape is appropriate for the specific service. Avoid over-tightening, which can crack brass fittings or distort threads.