Parker 4MSC8N-316 Compression Tube Connector 1/2-14 Npt

Product Description

The PARKER 4MSC8N-316 is a stainless steel compression tube connector designed to create a leak-tight transition between a compression tube end and a male NPT threaded port. Built from 316 stainless steel, it handles extreme temperature ranges from -425 degrees F to 1200 degrees F and a maximum working pressure of 10,300 psi, making it suitable for demanding industrial, instrumentation, and process piping applications. The connector features a 1/2-14 NPT thread on the male end and accepts tube with a 1/4 inch outside diameter on the compression end. It is installed by licensed pipefitters, instrumentation technicians, and plumbers working on high-pressure fluid or gas systems.

This fitting is used in applications requiring a reliable, corrosion-resistant connection between tubing and NPT-threaded fittings. Typical install scenarios include instrumentation lines, process control systems, hydraulic sampling points, and any high-pressure or cryogenic service where stainless steel construction is required. The compression-by-MNPT configuration allows direct connection to standard NPT ports without the need for additional adapters, simplifying assembly in tight panel or manifold installations.

Key Features

• 316 stainless steel construction for excellent corrosion resistance in aggressive environments
• Rated to 10,300 psi maximum working pressure for high-pressure service
• Wide temperature range: -425 degrees F to 1200 degrees F, covering cryogenic through high-heat applications
• Compression x MNPT end connections for direct tubing-to-port assembly
• 1/4 inch tube outside diameter compression end with 1/2-14 NPT male thread
• Overall length of 1.76 inches for compact installation clearance

Compatibility

Designed for use with 1/4 inch outside diameter tubing in compression fitting systems connecting to 1/2-14 NPT threaded ports. Suitable for high-pressure instrumentation, process, and fluid handling lines requiring stainless steel fittings.

Installation Notes

Installation should be performed by a qualified pipefitter or instrumentation technician following applicable codes such as ASME B31.3 for process piping. Depressurize and isolate the system completely before disassembly or fitting installation. Compression fittings require proper tube preparation including square-cut, deburred tubing ends to achieve a leak-tight seal. Do not overtighten the compression nut, as excessive force can damage the ferrule or tubing wall.