Parker 8MSC4N-B Compression Tube Connector 1/4 in Brass

Product Description

The PARKER 8MSC4N-B is a compression tube connector designed to create a leak-tight mechanical joint between a compression-style tube end and a male NPT threaded port. Constructed from brass to ASME-SB75 and ASTM-B75 standards, this connector is rated for up to 2200 psi maximum working pressure. The fitting measures 1.71 inches in overall length and accepts a 1/4 inch thread size on the NPT end. HVAC technicians, plumbers, and instrumentation installers use this type of fitting where a permanent, pressure-rated tube-to-pipe transition is required without welding or soldering.

This connector is suited for residential and light commercial applications involving copper or compatible tubing systems that require a transition to male NPT threaded pipe or equipment ports. Common install scenarios include refrigeration lines, pneumatic control tubing, instrument air lines, and fluid distribution systems where a reliable compression connection to a threaded fitting is needed. The brass construction makes it compatible with many common tubing materials used in these systems.

Key Features

• Rated to 2200 psi maximum working pressure for demanding pressure applications
• Brass construction per ASME-SB75 and ASTM-B75 standards for corrosion resistance and durability
• Compression x MNPT end connections allow tube-to-threaded-port transitions without soldering
• 1/4 inch NPT thread size fits common equipment ports and pipe fittings
• 1.71 inch overall length provides a compact inline connection profile
• Single-piece connector suitable for permanent or serviceable installations

Compatibility

Designed as an OEM-style replacement or new-installation compression-to-MNPT connector for use with 1/4 inch NPT threaded ports in brass-compatible tubing systems. Also cross-references Swagelok part number B-810-1-4.

Installation Notes

Installation of compression fittings is typically performed by licensed HVAC technicians, plumbers, or instrumentation mechanics. Depressurize and isolate the line completely before disassembling or installing any compression fitting. Use an appropriate tube cutter to ensure a clean, square tube end before seating the ferrule, and avoid over-tightening, which can damage the ferrule or tube wall. Verify thread sealant compatibility with the system fluid before applying to the NPT end.