Value Collection PC121NB-6 Brass Hex Plug 3/8 in Mnpt

Product Description

The VALUE COLLECTION PC121NB-6 is a brass hex pipe plug designed to seal and close off pipe ends in pressurized plumbing and fluid systems. The plug features male NPT (MNPT) external threads and a female NPT (FNPT) internal port, allowing it to be threaded directly into a pipe fitting or valve body. It carries a 125 psi pressure rating and is finished with a nickel-plated coating for added corrosion resistance. Plumbers, pipefitters, and HVAC technicians use this type of plug to cap unused outlets, isolate sections of pipe, or temporarily close a line during service work.

This hex plug is suited for use in residential and light commercial plumbing, hydronic heating, compressed air, and general fluid distribution systems where a 3/8 inch NPT connection is required. The hex head profile allows standard wrench engagement for installation and removal without slippage. The nickel-plated brass construction holds up well in wet environments and is compatible with a range of non-corrosive media.

Key Features

• 3/8 inch fitting size with MNPT x FNPT end connections
• 125 psi pressure rating for low- to medium-pressure service
• Nickel-plated finish for improved corrosion resistance
• Hex head design allows engagement with standard pipe wrenches or open-end wrenches
• Brass body construction provides durability and good thread integrity
• Sold individually — package quantity of 1

Compatibility

Designed as a standard replacement or service plug for 3/8 inch NPT threaded fittings in plumbing, HVAC, and general fluid system applications where a hex pipe plug is specified.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter following applicable IPC or local plumbing code requirements. Shut off and depressurize the line completely before installing or removing any pipe plug. Apply thread sealant tape or paste to the MNPT threads before installation to ensure a leak-free seal. Tighten using an appropriate wrench on the hex head — do not over-tighten, as brass threads can be damaged by excessive torque.