Parker 41IF-8 Brass Inverted Flare Nut 1/2 in Tube Od

Product Description

The PARKER 41IF-8 is a brass inverted flare nut designed for use in flared tube fitting assemblies. It accepts a 1/2-inch tube OD and features a 3/4-18 UNF thread standard, making it a standard-duty mechanical connection component for refrigeration, HVAC, and fluid system lines. The inverted flare design locks the nut against the fitting body to create a secure, leak-resistant joint without the need for sealant tape or compound. Constructed from brass, this nut offers corrosion resistance and reliable performance in both liquid and gas service applications where flare fittings are specified.

This inverted flare nut is suited for residential and light commercial HVAC, refrigeration tubing runs, and fluid transfer plumbing where 1/2-inch OD tubing with a flared end connection is used. It is commonly installed by HVAC technicians and refrigeration service professionals during line set assembly, equipment connections, and system repairs requiring secure, reusable mechanical tube joints.

Key Features

• Inverted flare end connection for secure, vibration-resistant tube joints
• 1/2-inch tube OD sizing for standard refrigeration and HVAC tubing
• 3/4-18 UNF thread for consistent engagement with mating inverted flare fittings
• Brass construction provides corrosion resistance in liquid and gas service
• Compact and lightweight at 0.05 pounds for easy handling in tight spaces

Compatibility

Designed as an OEM-style replacement or service component for flared tube assemblies using 1/2-inch OD tubing with 3/4-18 UNF inverted flare thread connections.

Installation Notes

Installation should be performed by a qualified HVAC technician or refrigeration mechanic. De-pressurize and isolate the system before disassembling any tube fittings. Ensure the tubing end is properly flared to the correct angle before seating the nut to avoid leaks. Do not overtighten brass fittings; use a calibrated torque wrench and follow the fitting manufacturer's specified torque range for the connection size.