Parker C536146 Hollow Hex Plug 1/2 Inch Mnptf 6000 Psi

Product Description

The PARKER C536146 is a hollow hex plug fitting designed for use in industrial pipe systems requiring a reliable threaded closure. Constructed from zinc-plated steel, it accepts a 1/2 inch male MNPTF thread and is rated to 6000 psi, making it suitable for high-pressure hydraulic and pneumatic lines. The hex drive measures 3/8 inch across, and the overall length is 5/8 inch. Licensed plumbers, pipefitters, and hydraulic system technicians install this fitting during system assembly, maintenance, or pressure testing to cap off unused ports or branch lines.

This hollow hex plug is used in industrial fluid power, hydraulic, and compressed air systems where unused threaded ports need to be closed off securely. The MNPTF thread type provides a pressure-tight seal on tapered female port connections. It is appropriate for both new installations and retrofit work on existing manifolds, valve bodies, and hydraulic blocks in commercial and industrial settings.

Key Features

• Zinc-plated steel construction resists corrosion in typical industrial environments
• Rated to 6000 psi for use in high-pressure hydraulic and pneumatic systems
• 1/2 inch MNPTF thread engages tapered female pipe ports for a pressure-tight connection
• 3/8 inch hex drive allows installation with standard hex wrenches or sockets
• Compact 5/8 inch overall length suits tight clearance applications

Compatibility

Designed as an OEM-style replacement or service fitting for industrial pipe systems using 1/2 inch MNPTF threaded ports on manifolds, valve bodies, and hydraulic components.

Installation Notes

This fitting is installed by licensed pipefitters, hydraulic technicians, or plumbers working on industrial fluid power systems. Depressurize and isolate the system completely before removing or installing any threaded fittings. Apply thread sealant appropriate for the fluid medium and pressure rating per the system manufacturer guidelines. Do not overtighten — use a properly sized hex wrench and follow standard trade practice for tapered pipe thread engagement.