The Dometic flare nut is a critical compression fitting component used throughout RV cooling systems, refrigeration lines, and propane delivery systems. This 1/4" long forged flare nut ensures leak-free connections in high-pressure applications where reliability is essential for safe RV operation.

Key Features

• 1/4" size forged construction for superior durability and pressure resistance
• Long-style design provides extended thread engagement and secure installation
• Genuine OEM Dometic part manufactured to exact factory specifications
• Compatible with standard flare fittings used in RV cooling and propane systems
• Corrosion-resistant forged steel construction for long service life
• Replaces worn, stripped, or damaged flare nuts in existing systems

Technical Specifications

Specification	Detail
Part Number	290000109
Size	1/4"
Style	Long Forged Flare Nut
Material	Forged Steel
Application	Dometic Cooling Systems, Refrigeration, Propane Lines
OEM Status	Genuine Dometic Original Equipment

Frequently Asked Questions

What systems use this 1/4" flare nut?

This flare nut is used throughout Dometic RV cooling systems, refrigeration units, and propane delivery lines where 1/4" compression fittings are specified. It's commonly found in air conditioning systems and LP appliance connections.

How do I know if my flare nut needs replacement?

Replace the flare nut if you notice refrigerant or propane leaks around fittings, if the nut is visibly corroded or stripped, or if the fitting won't tighten properly. A small weeping leak at the connection indicates the flare nut seal has failed.

Can I reuse the old flare nut if I'm replacing a fitting?

For safety and reliability, we recommend replacing the flare nut whenever you disconnect a high-pressure line. Reusing old nuts risks incomplete seals and potential system leaks. New OEM nuts are inexpensive insurance against costly refrigerant or propane loss.

Why Choose Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts for RV owners who need genuine OEM components. Shipping directly from Elkhart, Indiana—the RV capital of the world—we maintain extensive inventory of Dometic cooling system, refrigeration, and propane components. Our expert support team can help you identify the exact part your RV needs, and every item is guaranteed authentic Dometic OEM quality.