Parker 220P-6 Slotted Plug 3/8 Inch Mnptf Brass

Product Description

The PARKER 220P-6 is a brass slotted plug fitting designed to seal threaded pipe openings in pressurized fluid and pneumatic systems. The slotted head allows installation and removal with a standard flathead screwdriver, making it a practical choice for systems that require periodic access or pressure testing. Rated to 1000 psi, this plug is built for industrial-grade service in hydraulic, pneumatic, and compressed-air lines. The 3/8 inch MNPTF male thread provides a secure, pressure-tight connection. Licensed plumbers, pipefitters, and HVAC technicians commonly specify this fitting when capping off unused ports or branch lines during system assembly or servicing.

This slotted plug is suited for use in industrial pipe systems, HVAC equipment, compressors, hydraulic manifolds, and fluid-handling assemblies where an unused threaded port must be sealed. The 3/8 inch MNPTF thread size is a common port size across a wide range of valves, manifolds, and control components. Its brass construction resists corrosion in moisture-exposed and moderate-chemical environments, making it appropriate for both indoor mechanical rooms and light-duty field applications.

Key Features

• 1000 psi pressure rating suitable for industrial pneumatic and hydraulic service
• Brass construction provides corrosion resistance in moisture and moderate-chemical environments
• 3/8 inch MNPTF male thread for secure, pressure-tight port sealing
• Slotted head design enables installation and removal with a standard flathead screwdriver
• Compact, single-piece design with no additional sealing components required beyond thread sealant

Compatibility

Designed as an OEM-style threaded pipe plug for industrial pneumatic, hydraulic, and fluid-system ports with a 3/8 inch MNPTF female-threaded opening rated to at least 1000 psi.

Installation Notes

Installation is typically performed by licensed pipefitters, plumbers, or HVAC technicians. De-pressurize and isolate the system completely before installing or removing any threaded plug. Apply an appropriate thread sealant or PTFE tape to the male threads per the system fluid and pressure requirements. Tighten using a flathead screwdriver to hand-tight plus a firm seat — do not overtighten brass fittings, as the material is susceptible to thread damage under excessive torque.