Parker 249IFHD-5-2 Brass Inverted Male Elbow 5/16 in

Product Description

The PARKER 249IFHD-5-2 is a brass inverted male elbow fitting designed to connect flared tubing to a male NPTF threaded port at a 90-degree angle. It accepts a 5/16-inch tube OD on the flare end and threads into a 1/8-27 NPTF port on the male end. The inverted flare design provides a secure, leak-resistant metal-to-metal seat without a ferrule or compression ring. This fitting is a standard component in refrigeration, HVAC, and fluid-power plumbing systems where directional changes in tubing runs are required. Installation is performed by licensed HVAC technicians, refrigeration mechanics, and plumbers working with low-pressure fluid or refrigerant lines.

This fitting is suited for residential and light commercial HVAC and refrigeration applications where 5/16-inch inverted flare tubing must connect to a 1/8-27 NPTF threaded port. Common install scenarios include refrigerant line sets, oil lines, and instrument tubing that require a 90-degree directional change at a port face. The NPTF thread form provides a pressure-tight dry-seal connection, reducing reliance on thread sealants in many applications.

Key Features

• Inverted flare end accepts 5/16-inch tube OD for a metal-to-metal sealing connection
• 1/8-27 NPTF male thread provides a dry-seal, pressure-tight port connection
• 90-degree elbow configuration allows directional changes in tight plumbing runs
• Brass construction offers corrosion resistance compatible with refrigerants, oils, and water-based fluids
• Compact, lightweight design at 0.05 pounds for use in space-constrained installations

Compatibility

Designed as an OEM-style replacement or service fitting for HVAC, refrigeration, and fluid-power systems that use 5/16-inch inverted flare tubing with 1/8-27 NPTF threaded ports.

Installation Notes

Installation is typically performed by a licensed HVAC technician or refrigeration mechanic following applicable mechanical codes. Recover and isolate any refrigerant or depressurize the fluid system fully before removing or installing fittings. Ensure the tube end is properly flared to the correct inverted flare angle before tightening to avoid leaks at the seat. Inspect threads for damage before assembly; NPTF threads are designed for dry-seal use, but a thread sealant compatible with the system fluid may be applied per the system manufacturer's guidance.