Parker 1 X 1/2 Ptr-s Pipe Bushing Mnptf X Fnptf

Product Description

The PARKER 1 X 1/2 PTR-S is a straight pipe bushing designed to reduce a 1-inch male MNPTF thread down to a 1/2-inch female FNPTF thread in threaded pipe systems. Constructed from zinc-plated steel, it carries a maximum working pressure of 3000 psi and a pressure rating of 4500 psi, making it suitable for demanding hydraulic and pneumatic line applications. The hex drive measures 1-3/8 inches across flats, and the overall length is 1-3/8 inches. Licensed plumbers, pipefitters, and hydraulic technicians install this fitting in industrial and commercial environments where a pipe size reduction is required at a threaded connection point.

This bushing is used wherever a threaded pipe or port transitions from a 1-inch nominal line to a 1/2-inch nominal line using NPT-style tapered fittings. Common applications include hydraulic manifolds, compressed air distribution systems, fluid transfer lines, and industrial plumbing assemblies. The MNPTF x FNPTF connection type provides a sealed, pressure-rated joint when assembled with compatible NPT pipe or fittings. Its compact straight profile fits in tight installations where space is limited.

Key Features

• Reduces 1-inch male MNPTF thread to 1/2-inch female FNPTF thread in a single straight fitting
• Zinc-plated steel construction resists corrosion in general-purpose industrial environments
• 3000 psi maximum working pressure with a 4500 psi pressure rating
• 1-3/8 inch hex size allows standard wrench installation
• Meets SAE 140140 standards for industrial pipe fittings
• Compact 1-3/8 inch overall length suits space-constrained installations

Compatibility

Designed for use in threaded pipe systems utilizing NPT tapered threads. Compatible with standard 1-inch MNPTF male pipe connections reducing to 1/2-inch FNPTF female pipe connections in hydraulic, pneumatic, and general industrial fluid-handling applications.

Installation Notes

Installation should be performed by a qualified pipefitter, plumber, or hydraulic technician. Always depressurize and isolate the system before removing or installing any threaded fitting. Apply appropriate thread sealant or PTFE tape to the male threads per the system fluid and pressure requirements. Use a properly sized wrench on the hex flats to avoid rounding the fitting during tightening.