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Small hexagonal brass plug with tapered male threads

Value Brand

Value Brand 1/4" MNPT Red Brass Solid Plug Bathware

SKU CH-43CG-HF51W

A 1/4" MNPT red brass solid plug rated for 125 psi and temperatures from -20 to 400 degrees Fahrenheit

  • Red brass construction resists corrosion
  • MNPT threads seal without extra fittings
  • Rated 125 psi for reliable pressure handling
  • Operates from -20 to 400 degrees F
  • Meets ANSI B1.20.1, ASME B16.15, ASTM B584 standards

Solid brass plug for 1/4-inch pipe threads

This red brass solid plug fits 1/4-inch male NPT threads and is rated for Class 125 service up to 125 psi. It suits plumbing repairs and low-pressure fluid systems where a permanent or removable closure is required. The fitting meets ANSI B1.20.1, ASME B16.15 and ASTM B584 standards.

Pressure and temperature limits

The plug withstands a maximum pressure of 125 psi and operates from -20 degrees to 400 degrees F. Installers must verify that the system design stays within these limits before use. Exceeding either value can cause leakage or fitting failure.

No accessories included

The product ships as a single solid plug with no gaskets, sealant or tools. Users must supply compatible thread sealant or tape to achieve a leak-tight joint. The California Proposition 65 notice indicates the brass contains chemicals linked to cancer and reproductive harm.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $2.99
Cheaper than about 98% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameZORO SELECT
Product typeOther

Questions about this item

What does the 125 psi rating mean when the plug is installed in a real system?

It is the maximum working pressure the Class 125 red-brass plug can hold without leaking when threaded into a matching 1/4" female NPT port.

How does the MNPT connection and ANSI B1.20.1 standard limit what I can thread this into?

The male NPT threads seal only in a female NPT fitting of the same 1/4" size; the standard fixes the taper and thread form so no other pipe thread type will engage properly.

What clearance and tool size are needed to fit and tighten the 1/4" red-brass solid plug?

A standard 1/4" NPT tap hole and a wrench that fits the plug's external hex — typically around 9/16" — provide enough room to thread and torque it to a leak-free seal.

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