3/8" Female Thread - 1/4" Bore Brass Flare Nut (Air Conditioning and Refrigeration Piping)

Designed to create safe, leak-tight connections in the copper piping of air conditioning, refrigeration and HVAC systems, this brass flare nut stands out with its special design that joins different sizes. With a 3/8" female thread connection face and a 1/4" copper tube bore, this flare nut makes tube transitions flawless in special piping applications that require a size reduction.

Complete Leak Tightness with Durable Brass Material

Ensuring safety in refrigerant lines operating under high pressure is essential. Made of heavy-duty brass, this flare nut offers maximum resistance to corrosion and to extreme cooling and heating cycles. It presses the flared copper tube perfectly onto the male fitting face, preventing even micro refrigerant leaks.

Key Technical Features and Equipment

Offering long service life on job sites and in service environments, the brass flare nut has the following technical details:

• Product Type: Flare Nut / Reducing Flare Nut
• Thread Size: 3/8" SAE Female Thread (female connection side)
• Bore Diameter: 1/4" (copper tube bore)
• Material: Solid brass resistant to high pressure and corrosion
• Application: VRF, split air conditioners, cold rooms and all types of HVAC copper piping

Practical Usage Note for Technicians in the Field

Technician's Note: Take extra care with flaring when using flare nuts with different sizes like this one (3/8" thread - 1/4" bore). After passing the 1/4" tube through this flare nut, make sure when flaring that the flare face is wide and smooth enough to seat fully on the 3/8" male fitting. Be careful not to strip the threads while tightening, and tighten to the appropriate torque value to guarantee leak tightness.