Value Collection PC121NB-2 Brass Hex Plug 1/8 in Mnpt

Product Description

The VALUE COLLECTION PC121NB-2 is a brass hex plug designed to cap or close off threaded pipe openings in plumbing, HVAC, and industrial piping systems. It features a 1/8 inch fitting size with male NPT (MNPT) external threads and a female NPT (FNPT) internal thread, allowing it to seat securely into a threaded port or fitting. The nickel plated finish adds corrosion resistance over the brass base material. Rated to 125 psi, this hex plug suits low- to medium-pressure applications in water, gas, and air lines. Plumbers, pipefitters, and HVAC technicians install this type of fitting during system assembly, pressure testing, and port sealing.

This hex plug is used wherever a 1/8 inch NPT threaded port needs to be capped or temporarily closed. Common applications include sealing unused gauge ports, test taps, and branch connections on boilers, chillers, air compressors, water distribution manifolds, and HVAC equipment. The MNPT x FNPT configuration makes it straightforward to thread into a female-threaded body while also accepting a male-threaded instrument or plug on the interior port if needed. Suitable for residential and light commercial mechanical systems.

Key Features

• Brass construction with nickel plated finish for corrosion resistance
• 1/8 inch NPT fitting size for standard threaded pipe connections
• MNPT x FNPT end connections for versatile installation
• 125 psi pressure rating suitable for low- to medium-pressure systems
• Hex drive profile allows installation and removal with a wrench

Compatibility

Designed as a standard 1/8 inch NPT hex plug for use in brass, steel, and cast iron threaded piping systems where a 125 psi pressure rating meets system requirements.

Installation Notes

Installation is performed by licensed plumbers, pipefitters, or HVAC technicians. Shut off and depressurize the system before installing or removing any threaded fittings. Apply thread sealant tape or pipe thread compound to the MNPT threads before installation to ensure a leak-free seal. Use an appropriately sized wrench on the hex profile; do not use pipe wrenches directly on the plated surface, as this may damage the finish.