Parker 1/2 X 1/4 Ptr-s Pipe Bushing 6000 Psi Mnptf X Fnptf

Product Description

The PARKER 1/2 X 1/4 PTR-S is a straight pipe bushing designed to reduce a 1/2-inch male NPT thread down to a 1/4-inch female NPT thread in hydraulic and pneumatic plumbing systems. Constructed from zinc-plated steel, this bushing carries a maximum working pressure rating of 6000 psi, making it suitable for high-pressure fluid and air lines. With a 7/8-inch hex size and an overall length of 1.125 inches, it fits standard wrench access in tight manifold and block configurations. Plumbers, pipefitters, and hydraulic system technicians install this type of fitting when adapting between mismatched port sizes on valves, manifolds, cylinders, and inline components.

This bushing is appropriate for industrial, commercial, and trade applications where a threaded port reduction is needed within a high-pressure hydraulic or pneumatic circuit. Typical install scenarios include adapting pump outlets, valve bodies, or cylinder ports from a 1/2-inch NPT connection to a 1/4-inch NPT downstream line. Its MNPTF x FNPTF connection type provides a pressure-tight tapered thread seal without requiring additional sealant compounds in many dry-seal applications, though job-specific requirements should always be followed.

Key Features

• Reduces 1/2-inch male NPT to 1/4-inch female NPT in a single straight fitting
• 6000 psi maximum working pressure rating for high-pressure hydraulic and pneumatic service
• Zinc-plated steel construction for corrosion resistance in industrial environments
• MNPTF x FNPTF tapered thread connection on both ends
• 7/8-inch hex size for standard wrench installation
• Compact 1.125-inch overall length for space-constrained installations

Compatibility

Designed as an OEM-style replacement or direct-fit bushing for any system requiring a straight MNPTF x FNPTF pipe thread reduction from 1/2-inch male to 1/4-inch female NPT.

Installation Notes

Installation should be performed by a licensed pipefitter, plumber, or hydraulic technician familiar with NPT threaded fittings and applicable pressure system codes. Always depressurize and isolate the circuit before removing or installing any threaded fitting. Apply thread sealant or PTFE tape in accordance with the system fluid type and the fitting manufacturer guidance unless a dry-seal application is specified. Do not overtighten tapered NPT threads, as this can crack the fitting or damage the mating port.