If you’re using Parker brass compression fittings, you may soon notice a small visual difference in two popular part numbers: 177C-4-2 and 177CA-4-2. But don’t worry—these changes are only cosmetic and won’t affect performance.
In this post, we’ll walk you through what’s changing, what’s staying the same, and a quick overview of each fitting’s specs and ideal use cases.
Parker’s FSC announced today a slight change to the body forging for the 177C-4-2 and 177CA-4-2. The change results in a slight difference in appearance and wrench flat dimension, but there are no other changes to the product’s fit, form, or function.
For your reference, here are the descriptions of the two fittings,
Parker 177C-4-2 Brass Compression Female Branch Tee
- Configuration: Tube-to-female pipe, female branch tee
- Tube Size: 1/4″
- Thread Size: 1/8″ NPT
- Material: Forged brass
- Operating Pressure: Up to 300 psi
- Temperature Range: -65°F to 250°F (-54°C to 121°C)
- Compatible Tubing: Copper, aluminum, thermoplastics
- Standards: Meets SAE J-512; UL listed for flammable liquids
The standard compression fittings are designed for general-purpose applications such as air lines, lubrication systems, and cooling lines. They do not require flaring or soldering, facilitating straightforward installation and maintenance.
Parker 177CA-4-2 Brass Compress-Align Female Branch Tee
- Configuration: Tube-to-female pipe, female branch tee with Compress-Align design
- Thread Size: 1/8″ NPTF
- Material: Forged brass
- Operating Pressure: Up to 2,800 psi
- Temperature Range: -65°F to 250°F (-54°C to 121°C)
- Compatible Tubing: Copper, aluminum, PTFE, FEP, PFA, and thermoplastics
- Features: Pre-assembled with a captive sleeve for correct orientation and faster installation; accommodates out-of-round tubing
- Applications: Suitable for compressors, machine tools, fluid transfer, and chemical dispensing systems
The Compress-Align fittings offer enhanced sealing capabilities and higher pressure ratings compared to standard compression fittings. Its design simplifies installation by eliminating the need for flaring or soldering, making it ideal for high-pressure applications and systems requiring reliable connections.
If you need assistance selecting the appropriate fitting for your specific application or have further questions, feel free to ask! Find more information on our Compression Fittings Page or email us at NationalSales@WesternInTech.com.
