Swagelok SS-4-WVCO-1-4ST is a 316 stainless steel VCO O-ring face seal fitting designed to provide a secure, high-purity sealing interface for instrumentation systems. This versatile fitting features a 1/4 inch VCO gland connection on one side and a 7/16-20 male SAE/MS straight thread on the other. It ensures repeatable vacuum-tight performance and is engineered for use in general industrial, high-purity, and high-pressure applications where space is often limited.

Technical Specifications

Specification	Value
Body Material	316 Stainless Steel
Connection 1 Size	1/4 in.
Connection 1 Type	VCO® O-Ring Face Seal Gland
Connection 2 Size	7/16-20 in.
Connection 2 Type	Male SAE/MS Straight Thread
Cleaning Process	Standard Cleaning and Packaging (SC-10)
Lubricant	Dow Corning 111
Flow Restrictor	No
UNSPSC (15.1)	40183107

Features and Performance

• High-Purity Interface: Specifically designed for VCO assemblies to provide reliable, vacuum-tight sealing.
• Compact Installation: The VCO face seal design allows for easy assembly and disassembly in tight or confined spaces compared to standard fittings.
• Quality Construction: Manufactured from 316 stainless steel with standard SC-10 cleaning for use in controlled environments.

System Selection & Safety

When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user.

Do not mix or interchange Swagelok products or components with those of other manufacturers unless they are governed by industrial design standards.