Parker 3/8 X 1/8 Ptr-s Pipe Bushing 6000 Psi Mnptf X Fnptf

Product Description

The PARKER 3/8 X 1/8 PTR-S is a straight pipe bushing designed to reduce a 3/8-inch male NPT fitting down to a 1/8-inch female NPT port. Built from zinc-plated steel, it carries a maximum working pressure rating of 6,000 psi, making it suitable for high-pressure hydraulic and pneumatic plumbing applications. The MNPTF x FNPTF thread configuration provides a reliable tapered thread seal without the need for additional fittings. Plumbers, pipefitters, and industrial maintenance technicians use this bushing to adapt mismatched pipe thread sizes in compressed air, hydraulic, and fluid power systems.

This bushing fits standard threaded pipe assemblies in industrial, commercial, and light manufacturing environments. It is commonly installed in manifold ports, valve bodies, pumps, compressors, and hydraulic power units where a 3/8-inch male thread must transition to a 1/8-inch female threaded connection. The straight profile keeps the assembly compact, which is useful in tight plumbing configurations where space around the fitting is limited.

Key Features

• Reduces 3/8-inch male NPT to 1/8-inch female NPT in a single fitting
• Rated to 6,000 psi maximum working pressure for high-pressure service
• Zinc-plated steel construction provides corrosion resistance in industrial environments
• MNPTF x FNPTF tapered thread design seals reliably with thread sealant or PTFE tape
• 3/4-inch hex size allows installation with standard open-end or adjustable wrenches
• Compact straight shape with an overall length of 7/8 inches

Compatibility

Designed as an OEM-style replacement or new-installation fitting for systems using standard NPT threaded pipe connections rated for high-pressure hydraulic or pneumatic service.

Installation Notes

A licensed pipefitter or qualified maintenance technician should install this bushing in pressurized systems. Depressurize and isolate the system completely before removing or installing any threaded fittings. Apply thread sealant or PTFE tape to the male threads in accordance with system fluid compatibility requirements. Do not over-tighten; use the hex flats and a properly sized wrench to seat the fitting without stressing the port threads.