Holyoke Fittings fm38x12 Sae Flare Adapter 3/8 X 1/2

Product Description

The HOLYOKE FITTINGS fm38x12 is an SAE flare tube to male pipe straight adapter designed to connect a 3/8-inch SAE flare tube end to a 1/2-inch male pipe thread. This fitting provides a secure, leak-resistant transition between flare and pipe thread connections commonly found in refrigeration, HVAC, and plumbing systems. It is sold individually and is a standard component used by HVAC technicians and plumbers when joining copper tubing to threaded pipe assemblies during system installation or repair.

This adapter is suited for residential and light commercial applications where an SAE flare connection must mate with a male NPT pipe thread. Typical install scenarios include refrigerant line connections, fuel gas lines, and hydraulic or pneumatic systems requiring a straight inline transition between tube and pipe fittings. The straight adapter profile keeps the connection compact and in-line, making it practical in space-constrained installations.

Key Features

• SAE flare inlet accommodates 3/8-inch flare tube connections
• 1/2-inch male pipe thread outlet for direct connection to NPT fittings
• Straight adapter design maintains inline flow path
• Sold individually for single-point replacement or repair

Compatibility

Designed as an OEM-style replacement or standard-service fitting for systems requiring a 3/8-inch SAE flare to 1/2-inch male pipe thread straight adapter connection.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber in accordance with applicable codes, including the IFGC and IPC where relevant. Shut off system pressure and isolate the line before disassembling or installing any flare fitting. Use appropriate flare wrenches to avoid rounding the fitting; do not use pipe wrenches on flare nuts. Apply thread sealant on the male pipe thread side only, and never apply sealant to the flare seating surface.

Technical Specifications

• Connection Type: SAE Flare x Male Pipe Thread (NPT)
• Tube Size: 3/8 inches
• Pipe Thread Size: 1/2 inches
• Adapter Style: Straight
• Unit of Measure: Each

Standard Information

• Brand: HOLYOKE FITTINGS
• Manufacturer Part Number: fm38x12