Parker 6MSC4N-316 Compression Tube Connector 1/4-18 Npt

Product Description

The PARKER 6MSC4N-316 is a stainless steel compression tube connector designed to join tubing to male NPT pipe threads in high-pressure and extreme-temperature fluid or gas systems. It features a compression end on one side and a male NPT threaded end on the other, creating a secure, leak-resistant connection without welding or soldering. Rated to 6600 psi maximum working pressure and capable of handling temperatures from -425 degrees F to 1200 degrees F, this fitting is built for demanding industrial, instrumentation, and process piping applications. The 316 stainless steel construction resists corrosion in aggressive environments.

This connector is suited for instrumentation tubing runs, hydraulic lines, pneumatic systems, and process control piping where a reliable compression-to-NPT transition is required. It is commonly installed in refineries, chemical processing plants, offshore equipment, HVAC instrumentation lines, and other applications that demand both pressure integrity and wide temperature tolerance. Licensed plumbers, pipefitters, and instrumentation technicians are the primary installers of this fitting type.

Key Features

• 6600 psi maximum working pressure for high-pressure system reliability
• Temperature range of -425 degrees F to 1200 degrees F suits cryogenic through high-heat applications
• 316 stainless steel construction provides corrosion resistance in harsh or wet environments
• Compression x MNPT end connections allow tool-free tube insertion with standard NPT pipe thread engagement
• 1/4-18 NPT thread size is a widely used standard for instrumentation and process fittings
• Compact overall length of 1.57 inches minimizes installation footprint in tight spaces

Compatibility

Designed as an OEM-style compression-to-male NPT connector for instrumentation and process tubing systems using 1/4-18 NPT threaded ports and compatible compression tube sizes.

Installation Notes

Installation should be performed by a licensed pipefitter, plumber, or instrumentation technician familiar with compression fitting assembly procedures. Depressurize and isolate the line completely before disassembly or installation. Do not overtighten the compression nut, as excessive torque can deform the ferrule and compromise the seal. Consult applicable codes such as ASME B31.3 for process piping or IFGC for gas line applications when determining installation requirements.