Parker 1/2 X 3/8 Ff-s Hex Plug 6000 Psi Mnptf Fitting

Product Description

The PARKER 1/2 X 3/8 FF-S is a male-thread hex plug fitting designed for high-pressure industrial piping and fluid power applications. It accepts a 1/2 x 3/8 inch male MNPTF (male national pipe thread fuel) connection in a straight configuration and is rated to 6,000 psi maximum working pressure. The hex drive design allows standard wrench installation without special tooling. This type of fitting is typically installed by hydraulic technicians, pipefitters, and industrial maintenance professionals where a high-integrity threaded plug is needed to close off a port or line end in hydraulic, pneumatic, or fluid-transfer systems.

This fitting is suited for use in industrial hydraulic systems, fluid power circuits, and high-pressure plumbing assemblies where a reliable MNPTF plug is required. The 6,000 psi pressure rating makes it appropriate for demanding hydraulic service. It is commonly installed in manifolds, valve bodies, cylinder ports, and distribution blocks to seal unused ports or cap off lines during system assembly, testing, or maintenance.

Key Features

• Rated to 6,000 psi maximum working pressure for high-pressure hydraulic service
• MNPTF male thread connection in a straight fitting shape
• 1/2 x 3/8 inch male thread size for port-sealing versatility
• 7/8 inch hex size for standard wrench installation
• Overall length of 1-11/16 inches for compact installation clearance
• Conforms to SAE 140137 standards

Compatibility

Designed as an OEM-style replacement or direct-fit plug for industrial hydraulic and fluid power systems requiring a 1/2 x 3/8 inch MNPTF straight hex plug rated to 6,000 psi.

Installation Notes

Installation is performed by licensed pipefitters, hydraulic technicians, or qualified industrial maintenance personnel. Always depressurize and bleed the system fully before removing or installing any fitting. Apply appropriate thread sealant compatible with the system fluid and pressure rating. Verify thread engagement and torque to the system or fitting manufacturer specifications using a properly sized wrench on the hex drive.