Parker 3/8 Kmmoo-s Female Cross 3/8 in Fnptf 4500 Psi

Product Description

The PARKER 3/8 KMMOO-S is a female cross pipe fitting designed for industrial fluid and pneumatic systems requiring a four-way branch connection. Built from zinc-plated steel, it accepts 3/8-inch female threads on all four ports using FNPTF (Female National Pipe Taper Fuel) thread form, which provides a pressure-tight mechanical seal without relying on sealant alone. Rated to 4,500 psi maximum working pressure, this fitting is suited for high-pressure instrument, hydraulic, and pneumatic lines. It is installed by licensed plumbers, pipefitters, and industrial maintenance technicians working on compressed-air, hydraulic, or fluid-distribution systems.

This fitting is used in industrial piping applications where a single line must be split into multiple branch directions at a common junction point. Typical install scenarios include compressed-air distribution manifolds, hydraulic control panels, and process-fluid systems in both light commercial and heavy industrial environments. The cross configuration allows for in-line tee-and-branch routing without additional fittings, simplifying layout in tight plumbing runs. Its 3/8-inch FNPTF thread sizing fits standard schedule pipe and tubing systems common in trade and industrial settings.

Key Features

• Four-port female cross configuration for multi-directional fluid routing
• 3/8-inch FNPTF thread on all ports for pressure-tight mechanical seal
• 4,500 psi maximum working pressure rating for high-pressure applications
• Zinc-plated steel construction for corrosion resistance in industrial environments
• Compact cross shape simplifies branch connections without extra fittings

Compatibility

Designed as an OEM-style replacement or new-installation fitting for industrial pipe systems using 3/8-inch FNPTF threaded connections rated up to 4,500 psi.

Installation Notes

Installation should be performed by a licensed pipefitter or qualified industrial maintenance technician. Depressurize and isolate the line completely before removing or installing any fitting. FNPTF threads are designed to seal on the thread form; apply thread sealant tape or compound per the applicable piping code and system fluid compatibility. Do not overtighten, as this can crack the fitting body or damage threads.