Eaton 3152X2 Brass Hex Plug 1/8 Inch Mnptf

Product Description

The EATON 3152X2 is a straight brass hex plug with a 1/8 inch male MNPTF thread, designed to seal open pipe ends in pressurized fluid and gas systems. Rated to 1,200 psi maximum working pressure and a temperature range of -65 degrees F to 250 degrees F, this plug handles demanding industrial and mechanical service conditions. The hex-drive head allows standard wrench installation, making removal and reinstallation straightforward during maintenance. It is installed by plumbers, pipefitters, and HVAC technicians working on low-pressure and medium-pressure piping systems.

This hex plug is suited for use in industrial piping, hydraulic circuits, pneumatic lines, and plumbing assemblies where a threaded port needs to be capped or temporarily closed. The MNPTF thread form provides a pressure-tight seal on standard NPT-compatible female ports. Typical applications include closing unused tee or manifold ports, capping test points, and sealing instrument connections during system commissioning or service.

Key Features

• 1/8 inch male MNPTF straight thread for NPT-compatible female ports
• 1,200 psi maximum working pressure for medium-pressure service
• Operating temperature range: -65 degrees F to 250 degrees F
• Brass construction resists corrosion in water, air, and many fluid media
• 7/16 inch hex size for wrench-driven installation and removal
• Meets ASA, ASME, and SAE standards

Compatibility

Designed as an OEM-style replacement or service fitting for industrial and commercial piping systems using standard 1/8 inch female NPT ports.

Installation Notes

Installation is performed by licensed plumbers, pipefitters, or HVAC technicians. De-pressurize and isolate the line before removing or installing any pipe plug. Apply thread sealant or PTFE tape appropriate for the media and pressure rating. Tighten with a wrench to the hex flats only — do not overtighten, as brass threads can gall or strip.

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.