Stainless Steel Male Adapter – 3/8" Tube Stub x 1/4" Male NPT

The SMA 6-4N is a 3/8" tube stub to 1/4" Male NPT adapter designed for hygienic fluid processors and high-integrity gas or liquid systems. Made from corrosion-resistant 316 stainless steel, it provides a secure, leak-tight connection in sanitary piping layouts where space, cleanliness, and performance are critical.

This adapter is a go-to for engineers working on Clean-in-Place (CIP) instrumentation, Original Equipment Manufacturer (OEM) skids, and gas sampling panels. It integrates seamlessly with compression fittings and standard stainless steel tubing, offering precise fluid control and consistent sealing under pressure.

As a direct alternative to Swagelok® SS-600-TA-4-2, the SMA 6-4N meets the same rigorous standards for cleanliness, durability, and system compatibility—making it ideal for food-grade, pharmaceutical, and high-purity industrial applications.

Key Benefits

• Seal: Tapered NPT thread and tube stub provide tight, reliable sealing
• Durability: Handles pressure, vibration, and frequent cleaning cycles
• Maintenance: Simple to install, disconnect, and reuse
• Compatibility: Fits with 3/8" stainless tube and 1/4" NPT process hardware
• Material: 316 stainless steel supports CIP and sanitary-grade environments

Typical Applications

• Clean-in-Place (CIP) instrumentation systems
• Hygienic valve and process piping assemblies
• Original Equipment Manufacturer (OEM) skids
• Gas sampling and monitoring panels
• Sanitary fluid transfer and lab-grade installations

Looking for a Swagelok® SS-600-TA-4-2 equivalent? The SMA 6-4N delivers the same clean, corrosion-resistant performance—engineered for hygienic and industrial-grade systems.