Midland Industries 41IFB-6 Inverted Flare Hex Nut Brass

Product Description

The MIDLAND INDUSTRIES 41IFB-6 is a brass inverted flare hex nut designed for 3/8-inch male inverted flare connections. It provides a reliable, leak-resistant threaded joint in hydraulic and fluid-transfer lines. The nut is machined from brass for corrosion resistance and durability in demanding service environments. It measures approximately 0.66 inches in length with a 0.62-inch hex profile, allowing standard wrench engagement. Rated to 1000 psi and capable of handling temperatures from -65 to 250 degrees F, this nut suits a wide range of pressurized tubing applications. Licensed plumbers, HVAC technicians, and hydraulic system technicians are the primary installers of this fitting type.

This hex nut is suited for use in residential and light commercial plumbing, HVAC refrigerant and fuel-line work, and hydraulic systems where inverted flare connections are specified. It is compatible with copper, brass, aluminum, and steel hydraulic tubing. The inverted flare design is common in automotive, OEM equipment, and mechanical systems where vibration-resistant, reusable connections are required. It is intended for use in low-to-medium-pressure fluid systems within its rated pressure and temperature range.

Key Features

• Brass construction resists corrosion and withstands repeated assembly and disassembly
• 3/8-inch male inverted flare connection for secure, leak-resistant joints
• Rated to 1000 psi for use in pressurized hydraulic and fluid lines
• Operating temperature range of -65 to 250 degrees F suits most mechanical service environments
• 0.62-inch hex profile accepts standard wrenches for controlled tightening
• Compatible with copper, brass, aluminum, and steel tubing

Compatibility

Designed for use with copper, brass, aluminum, and steel hydraulic tubing on 3/8-inch male inverted flare connections.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or hydraulic systems technician familiar with inverted flare fittings. Always depressurize and isolate the line before disassembling or assembling flare connections. Inspect the tubing flare seat for burrs or damage before threading on the nut to ensure a proper seal. Do not over-tighten; flare fittings rely on metal-to-metal seat contact and excessive torque can distort the flare.