Parker 211P-2 Brass Square Head Pipe Plug 1/8 in Mnptf

Product Description

The PARKER 211P-2 is a brass square head pipe plug designed to seal threaded pipe openings in fluid and pneumatic systems. Machined with a 1/8 inch male MNPTF (male national pipe thread fuel) connection, it provides a pressure-tight closure rated to 1,000 psi. The square head drive allows installation and removal with a standard wrench without requiring a screwdriver slot or hex key. Rated for temperatures from -65 degrees F to 250 degrees F, this plug handles a broad range of operating conditions in industrial, HVAC, and plumbing applications. Licensed plumbers, HVAC technicians, and industrial pipefitters are the typical installers.

This plug is suited for sealing unused ports on manifolds, valves, pumps, compressors, and piping assemblies in both residential and commercial settings. The MNPTF thread form creates a pressure-tight seal on fuel, oil, air, and water lines. Its compact 1/8 inch thread size makes it common for instrument taps, gauge ports, and small branch connections where a permanent or semi-permanent closure is needed. It conforms to SAE J530 and SAE J531 standards, making it appropriate for hydraulic and pneumatic circuit work that requires compliance with those specifications.

Key Features

• 1/8 inch MNPTF male thread for pressure-tight port sealing
• 1,000 psi maximum working pressure
• Operating temperature range: -65 degrees F to 250 degrees F
• Brass construction for corrosion resistance in fluid and air service
• Square head drive for reliable wrench engagement
• Meets SAE J530 and SAE J531 standards

Compatibility

Designed as an OEM-style pipe plug for threaded pipe systems using 1/8 inch MNPTF connections in industrial, HVAC, plumbing, and pneumatic applications.

Installation Notes

Installation is performed by a licensed plumber, HVAC technician, or qualified industrial pipefitter. Depressurize and isolate the system before removing or installing any threaded plug. Apply thread sealant or PTFE tape as appropriate for the service fluid, following the system manufacturer and applicable code requirements. Do not overtighten brass fittings, as the material is subject to thread damage under excessive torque.