Stainless Steel SP-6 | 3/8 in. Tube OD Fitting Plug

The SP-6 is a 3/8" tube OD compression plug designed to seal unused tubing ports in pressure-rated and hygienic systems. Precision-machined from 316 stainless steel, it provides strong corrosion resistance and leak-tight performance in environments subject to vibration, pressure cycling, or aggressive media.

Ideal for sanitary fluid systems, process lines, and lab setups, this compact plug offers secure isolation of test points, sample ports, or temporarily disconnected branches. The hex-head design allows for easy installation and removal without compromising tube integrity or sealing surfaces.

Key Benefits

• Seal: Leak-tight compression fit to prevent fluid or gas escape
• Strength: Holds under pressure, vibration, and frequent disassembly
• Fit: Hex head enables easy handling and secure installation
• Material: 316 stainless steel supports sanitary and chemical-grade systems
• Compatibility: Works with 3/8" tubing in Swagelok® style assemblies

Typical Applications

• Sanitary stainless steel systems
• Process line isolation or port sealing
• Lab instrumentation and test setups
• Clean-in-Place (CIP) and hygienic fluid systems
• OEM chemical skids and sample manifolds

Looking for a Swagelok® alternative tube plug to seal off your 3/8" line?
The SP-6 delivers clean isolation and compression-sealed performance for high-integrity fluid systems.