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

The SC-6 is a 3/8" tube OD compression cap designed to securely seal off tubing ends and unused ports in fluid and gas systems. Made from high-grade 316 stainless steel, this cap resists corrosion, vibration, and high pressures—making it ideal for shutdowns, maintenance, or isolation in cleanroom, lab, and process environments.

Its dual-ferrule compression design ensures a tight, metal-to-metal seal that holds under cycling, thermal shifts, and aggressive media exposure. Whether you’re capping a test port, isolating part of a system, or prepping unused lines for future use, the SC-6 delivers performance without compromise.

Engineered to integrate with Swagelok® style instrumentation systems, this fitting is a staple in sanitary, industrial, and OEM setups requiring repeatable, leak-free tube terminations.

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.