Parker 1 X 3/4 Ptr-s Pipe Bushing Mnptf X Fnptf 4000 Psi

Product Description

The PARKER 1 X 3/4 PTR-S is a straight hex pipe bushing designed to reduce a 1-inch male MNPTF port down to a 3/4-inch female FNPTF connection. It is rated to 4,000 psi working pressure, making it suitable for high-pressure hydraulic, pneumatic, and fluid-system applications. The 1-3/8-inch hex size allows for standard wrench engagement during installation. Weighing 0.21 pounds, it is a compact, single-piece steel fitting used to adapt mismatched port sizes in piping assemblies. Licensed plumbers, pipefitters, and hydraulic technicians install this fitting during system assembly or repair.

This bushing fits inline piping assemblies where a 1-inch NPT male outlet must transition to a 3/4-inch NPT female port. Typical applications include hydraulic power units, compressed air distribution systems, industrial fluid transfer lines, and mechanical equipment requiring port-size reduction. The straight configuration keeps the connection in-line without directional offset, simplifying installation in tight panel or manifold environments.

Key Features

• 4,000 psi maximum working pressure for demanding hydraulic and pneumatic service
• MNPTF x FNPTF straight bushing reduces 1-inch male to 3/4-inch female NPT
• 1-3/8-inch hex size provides positive wrench engagement
• 1-3/8-inch overall length suits compact plumbing assemblies
• SAE 140140 standard compliance for industrial fitting applications
• Single-piece construction at 0.21 pounds for easy handling and stocking

Compatibility

Designed as an OEM-style replacement or direct-install fitting for industrial piping systems requiring a 1-inch MNPTF to 3/4-inch FNPTF straight bushing rated to 4,000 psi.

Installation Notes

Installation should be performed by a qualified pipefitter or hydraulic technician following applicable codes such as ASME B31.1 or B31.3 for pressure piping. Depressurize and isolate the system completely before removing or installing any fitting. Apply an appropriate thread sealant or PTFE tape to the male threads per the system fluid compatibility requirements. Do not overtighten; use the hex flats with a properly sized wrench to achieve a leak-free seal without damaging the threads.