Parker X1/4F3HG-B Pipe Adapter 1000 Psi Mbspt X Fnptf

Product Description

The PARKER X1/4F3HG-B is a brass pipe adapter that connects 1/4-inch male BSPT (British Standard Pipe Taper) external threads to 1/4-inch female NPT female threads. It bridges MBSPT and FNPTF thread standards in a single compact fitting, making it a practical solution when connecting metric or import-standard pipe components to domestic NPT-threaded systems. Rated to 1,000 psi, this adapter is suited for compressed air, hydraulic, and general industrial fluid lines. The brass construction resists corrosion in moderate-temperature service. Overall length is 1-3/8 inches, and the hex size is 3/4 inch for standard wrench engagement. Licensed plumbers, pipefitters, and industrial maintenance technicians are the typical installers.

This adapter is used in industrial and commercial piping systems where BSPT-threaded components — such as imported valves, gauges, or manifolds — must mate with NPT-threaded pipe, tubing, or equipment. At 1,000 psi pressure rating, it is appropriate for moderate-pressure compressed air, pneumatic control, and low-to-mid-pressure hydraulic applications. Its compact 1-3/8-inch body fits in tight panel or manifold installations where clearance is limited.

Key Features

• Converts 1/4-inch MBSPT external threads to 1/4-inch FNPTF internal threads
• 1,000 psi pressure rating suitable for compressed air and moderate-pressure fluid service
• Brass construction provides corrosion resistance in air, water, and light hydraulic fluid service
• 1-3/8-inch overall length fits compact installations
• 3/4-inch hex size accepts standard open-end or combination wrenches

Compatibility

Designed as an OEM-style thread-conversion adapter for industrial piping systems requiring a transition between MBSPT and FNPTF threaded connections at 1/4-inch nominal size.

Installation Notes

Installation should be performed by a qualified pipefitter, plumber, or industrial maintenance technician. Depressurize and isolate the line completely before removing any existing fittings or installing this adapter. Apply thread sealant compatible with both BSPT and NPT thread forms per the system fluid type — note that BSPT and NPT have different thread geometries, so proper sealant selection is critical for leak-free joints. Torque to fitting and system requirements using the 3/4-inch hex; do not over-tighten brass fittings.