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

Product Description

The PARKER 1 X 3/8 PTR-S is a straight pipe reducing bushing designed to connect a 1-inch male MNPTF thread to a 3/8-inch female FNPTF thread in a single inline fitting. Rated to a maximum working pressure of 4500 psi, this bushing is built for demanding hydraulic and industrial piping applications where reliable thread engagement and pressure integrity are required. The hex body measures 1-3/8 inches across flats, providing a solid wrench grip during installation. Overall length is 1-3/8 inches. Licensed plumbers, pipefitters, and hydraulic technicians install this type of fitting when reducing a larger threaded port to accept smaller-diameter line connections.

This reducing bushing is suited for use in industrial fluid power systems, hydraulic manifolds, compressed air lines, and other high-pressure piping assemblies that use NPT-standard threaded connections. The straight configuration makes it appropriate for in-line port reductions where space is limited and a close-coupled transition is needed. It meets SAE 140140 standards, making it compatible with system assemblies requiring that designation.

Key Features

• Reduces a 1-inch MNPTF male thread to a 3/8-inch FNPTF female thread in a straight configuration
• Maximum working pressure of 4500 psi for high-pressure hydraulic and industrial service
• Hex size of 1-3/8 inches across flats for positive wrench engagement during installation
• Overall length of 1-3/8 inches for compact, close-coupled fitment
• Meets SAE 140140 standard
• Sold individually — package quantity of 1

Compatibility

Designed as an OEM-style replacement or new-installation fitting for industrial piping and hydraulic systems using MNPTF x FNPTF threaded connections at 1-inch male to 3/8-inch female port reductions.

Installation Notes

Installation should be performed by a licensed pipefitter, plumber, or qualified hydraulic technician in accordance with applicable codes. Depressurize and isolate the system completely before removing or installing any threaded fittings. Apply appropriate thread sealant compatible with the system fluid — do not use sealant on the first one or two threads. Use a calibrated torque wrench and tighten to the fitting manufacturer's recommended specifications for the thread size and material involved; do not over-torque tapered pipe threads.