Eaton 691X6 Compression Male Elbow 3/8 Od Brass

Product Description

The EATON 691X6 is a brass compression tube male elbow fitting designed to connect a 3/8-inch OD compression tube to a 1/4-inch MNPT threaded port at a 90-degree angle. Constructed from brass, this fitting provides reliable, leak-resistant connections in fluid and gas line applications. It is commonly installed by HVAC technicians, plumbers, and refrigeration mechanics where a direction change is needed between a compression tube run and a male pipe thread connection point. The fitting meets ASA, ASME, and SAE standards, confirming its suitability for professional-grade installations.

This fitting is used in residential and light commercial applications where copper or compatible tubing must transition to a threaded male port on valves, manifolds, or equipment connections. Typical install scenarios include refrigerant line accessories, fuel gas controls, compressed air lines, and plumbing supply connections. The compression-style end eliminates the need for soldering or flaring at the tube side, making it a practical choice for field repairs and new installations alike.

Key Features

• 90-degree male elbow configuration allows direction changes in tight spaces
• 3/8-inch OD compression end accepts standard copper or compatible tubing without soldering
• 1/4-inch MNPT threaded end connects directly to female-threaded ports on valves and equipment
• Brass construction offers corrosion resistance and durability in fluid and gas service
• Meets ASA, ASME, and SAE standards for professional and code-compliant installations

Compatibility

Designed as an OEM-style compression tube male elbow fitting for use with 3/8-inch OD tubing and 1/4-inch MNPT threaded connections in HVAC, plumbing, and refrigeration applications.

Installation Notes

Installation is typically performed by licensed HVAC technicians or plumbers. Shut off and depressurize the line before disassembly or installation. Hand-tighten the compression nut onto the tube, then advance with a wrench per standard compression fitting practice — do not overtighten, as brass fittings can be damaged by excessive torque. Verify thread compatibility and confirm all connections are leak-free under pressure before returning the system to service.