Eaton 3152X6 Brass Hex Plug 3/8 in Mnptf 1200 Psi

Product Description

The EATON 3152X6 is a straight brass hex plug with a 3/8 inch male MNPTF thread, rated for use in fluid and pneumatic systems requiring reliable dead-end closure. It handles a maximum working pressure of 1200 psi and a temperature range of -65 degrees F to 250 degrees F, making it suitable for demanding industrial and mechanical service environments. The hex head design allows for standard wrench installation. Plumbers, pipefitters, and HVAC technicians install this type of fitting when capping off unused ports on manifolds, valves, pumps, or distribution systems.

This plug is used in both residential and light commercial plumbing, refrigeration, and compressed air systems wherever a threaded port requires a secure, pressure-rated closure. The MNPTF thread form provides a tapered male connection that seals on the threads, reducing reliance on additional sealant when used in compatible female fittings. It is a standard stock item for service trucks and mechanical rooms where quick port termination is a routine task.

Key Features

• 3/8 inch male MNPTF tapered thread for pressure-tight port closure
• 1200 psi maximum working pressure rating
• Operating temperature range: -65 degrees F to 250 degrees F
• Brass construction for corrosion resistance in water, air, and light hydraulic service
• 11/16 inch hex size for standard wrench engagement
• Meets ASA, ASME, and SAE standards

Compatibility

Designed as a standard MNPTF hex plug for use in any female NPT or NPTF-threaded port accepting a 3/8 inch male tapered fitting up to 1200 psi service pressure.

Installation Notes

Installation is performed by licensed plumbers, pipefitters, or qualified HVAC technicians. Always depressurize and isolate the system before removing or installing any pipe plug. Apply thread sealant or PTFE tape as required by the system fluid and applicable codes such as the IPC or IFGC. Do not overtighten brass fittings, as the material can crack under excessive torque.