Parker 2MSC4N-B Compression Tube Connector 1/4 in Brass

Product Description

The PARKER 2MSC4N-B is a brass compression tube connector designed to join 1/4-inch compression tubing to a male NPT threaded port. It provides a secure, leak-resistant connection in fluid and gas distribution systems where reliable sealing under pressure is required. Rated to 3,600 psi maximum working pressure and built to ASME-SB75 and ASTM-B75 standards, this fitting is well suited for demanding service environments. The overall installed length is 1.4 inches. Plumbers, pipefitters, and HVAC technicians working on refrigerant, instrument air, hydraulic, or similar tube assemblies are the typical installers of this type of compression-to-NPT connector.

This fitting is used in residential and commercial applications wherever a compression tube line must transition to a male NPT threaded port. Common install scenarios include instrument tubing runs, control line connections, refrigeration and HVAC systems, and hydraulic or pneumatic distribution lines. The compression end accepts soft or semi-rigid tubing, while the male NPT end threads directly into a female-threaded valve, manifold, or equipment port. The Swagelok equivalent cross-reference for this fitting is B-200-1-4.

Key Features

• Rated to 3,600 psi maximum working pressure for high-pressure service
• Brass construction per ASME-SB75 and ASTM-B75 standards
• 1/4-inch compression x MNPT end connections for tube-to-pipe transitions
• Compact overall length of 1.4 inches suits tight installation spaces
• Cross-references to Swagelok part number B-200-1-4

Compatibility

Designed as an OEM-style replacement and standard compression fitting for 1/4-inch compression tube lines terminating at a male NPT port. Cross-references to Swagelok B-200-1-4. Suitable for use in systems where brass fittings meeting ASME-SB75 and ASTM-B75 are specified.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified HVAC technician. Depressurize and isolate the system before removing or installing any compression fitting. Use an appropriately sized wrench on the hex body only — do not grip the compression nut body with pipe wrenches or pliers that may damage sealing surfaces. Verify thread engagement and torque per the applicable system design specification and local code requirements.