Parker 4MSC12N-316 Compression Tube Connector 3/4-14 Npt

Product Description

The PARKER 4MSC12N-316 is a stainless steel compression tube connector designed to join tubing to male NPT-threaded pipe or fittings in high-demand fluid and gas systems. It features a 3/4-14 NPT thread with compression-to-MNPT end connections, allowing a secure, leak-resistant seal without welding or flaring. Rated for a maximum working pressure of 10,300 psi and a temperature range from -425 degrees F to 1,200 degrees F, this connector is built for extreme service environments where standard brass or carbon steel fittings are not suitable. It weighs 0.25 pounds and ships as a single piece.

This connector is used in industrial, hydraulic, pneumatic, instrumentation, and process piping applications where stainless steel is required for corrosion resistance or elevated temperature and pressure conditions. Typical installations include chemical processing lines, high-pressure hydraulic systems, cryogenic service, and steam or high-temperature gas distribution. It is well suited for use in refineries, power generation facilities, marine environments, and HVAC mechanical rooms where aggressive media or temperature extremes demand 316 stainless construction.

Key Features

• 316 stainless steel construction for corrosion resistance in harsh or wet environments
• Maximum working pressure of 10,300 psi for high-pressure service
• Wide temperature range: -425 degrees F to 1,200 degrees F, suitable for cryogenic through high-heat applications
• Compression x MNPT end connections allow direct connection to NPT-threaded male pipe without welding or flaring
• 3/4-14 NPT thread size for compatibility with standard pipe connections
• Single-piece unit sold individually

Compatibility

Designed as an OEM-style compression tube connector for use in high-pressure instrumentation, hydraulic, pneumatic, and process piping systems requiring 3/4-14 NPT male threaded connections and compression tube ends.

Installation Notes

Installation should be performed by a qualified pipefitter, plumber, or instrumentation technician familiar with high-pressure compression fittings. Depressurize and isolate the system completely before disconnecting any existing fittings or installing this connector. Use appropriate tubing cutters and deburring tools to ensure a clean, square tube end before seating the compression ferrule. Follow applicable codes including ASME B31.3 for process piping and verify system pressure ratings before returning the line to service.