316 Stainless Steel Fitting Cap – 3/8 in. Tube OD (SC-6)

This 3/8″ compression cap is engineered to provide a secure, leak-tight termination for tubing ends and unused ports in both fluid and gas systems. Delivers corrosion resistance and pressure integrity for long-term service in sanitary, laboratory, and industrial environments. Its dual-ferrule compression design creates a vibration-resistant, metal-to-metal seal that maintains performance under cycling, temperature swings, and aggressive chemical exposure.

The compact design makes this fitting ideal for applications where clean and reliable isolation is required. It is commonly used to cap test points, seal off unused lines in analyzer systems, or temporarily isolate sections of a process loop during maintenance. By eliminating the need for sealants, it supports hygienic service while allowing easy removal and reuse whenever system changes are required.

Engineered with precision tolerances, this fitting integrates seamlessly with Swagelok® style instrumentation setups and ensures repeatable performance in OEM skids, pilot plants, and clean-in-place (CIP) installations. Its rugged construction and consistent sealing performance give engineers confidence when shutting down sensitive equipment, testing pressure limits, or prepping new systems for future expansion.

Key Benefits

• Seal: Dual-ferrule design delivers tight, vibration-resistant metal-to-metal closure

• Durability: 316 stainless steel construction stands up to pressure and harsh media

• Simplicity: Easy installation with reliable reusability in system buildouts

• Compatibility: Works with 3/8″ stainless steel tubing in Swagelok® style systems

• Versatility: Ideal for system isolation, maintenance, and line testing

Typical Applications

• Sanitary and instrumentation tube networks
• Hydraulic and pneumatic system shutdowns
• Chemical sampling systems and analyzers
• Skid packages and OEM builds
• Cleanroom line capping and maintenance

Looking for a Swagelok® style 3/8″ compression cap to shut off a line with confidence? The SC-6 delivers clean sealing, corrosion resistance, and long-term reliability wherever precision matters. Add it to your cart below or request a quote.