Parker 4MSEL6N-316 Compression Male Elbow 3/8-18 Npt Ss

Product Description

The PARKER 4MSEL6N-316 is a stainless steel compression tube male elbow fitting designed to connect 1/4-inch OD tubing to a 3/8-18 NPT male threaded port at a 90-degree angle. It transitions between a compression-style tube end and a male NPT (MNPT) pipe thread, making it a reliable choice for high-pressure and high-temperature instrumentation and fluid-handling lines. With a maximum working pressure of 10,300 psi and a temperature range of -425 degrees F to 1200 degrees F, this fitting is built for demanding process, industrial, and HVAC-adjacent applications. Licensed plumbers, pipefitters, and instrumentation technicians are the primary installers.

This fitting is suited for use in high-pressure hydraulic lines, pneumatic systems, process instrumentation tubing, and industrial fluid distribution where a tube-to-pipe-thread transition at an elbow is required. The stainless steel 316 construction makes it appropriate for corrosive environments, high-purity fluid service, and cryogenic to high-heat applications. It is commonly installed in refineries, chemical plants, OEM equipment panels, and commercial mechanical systems requiring a compact directional change at a threaded port connection.

Key Features

• Compression x MNPT end connections allow direct tube-to-pipe-thread transition at a 90-degree elbow
• 316 stainless steel construction provides corrosion resistance for harsh and corrosive media
• Maximum working pressure of 10,300 psi suits high-pressure instrumentation and hydraulic service
• Wide temperature range from -425 degrees F to 1200 degrees F covers cryogenic through extreme-heat applications
• 1/4-inch tube OD with 3/8-18 NPT thread for a common instrumentation tube-to-port size pairing

Compatibility

Designed as an OEM-style compression fitting for use with 1/4-inch OD tubing terminated at a 3/8-18 NPT male threaded port. Compatible with systems requiring Parker-style compression tube fittings in stainless steel.

Installation Notes

Installation should be performed by a licensed pipefitter, plumber, or instrumentation technician familiar with compression fitting assembly procedures. Shut off and depressurize the system fully before removing or installing any compression fittings. Thread the MNPT end into the receiving port using appropriate thread sealant rated for the service media and temperature range. Ensure the compression nut and ferrule are seated correctly on the tubing before tightening to avoid leaks or tube deformation.