Matco-norca mn-ftsp02 Square Head Pipe Plug 3/8 in

Product Description

The MATCO-NORCA mn-ftsp02 is a 3/8 inch square head pipe plug designed to seal threaded pipe ends in plumbing, HVAC, and industrial piping systems. Manufactured from forged steel meeting ASTM A105N material standards, this plug delivers reliable pressure-holding performance in high-demand applications. The square head drive design allows for positive wrench engagement during installation and removal. With a wall thickness of 3.51 mm and a 9.1 mm thread size, this fitting is built for durability in both new construction and service work. Licensed plumbers and pipefitters are the primary installers.

This plug fits 3/8 inch threaded pipe connections and is suited for use in residential and commercial piping systems where a secure, leak-free pipe end closure is required. Typical applications include capping unused branch lines, isolating sections of a distribution system, and blanking off test ports. The threaded connection type makes it compatible with standard NPT-threaded pipe and fittings commonly found in gas, water, and hydronic heating systems.

Key Features

• Forged steel construction meeting ASTM A105N material standard for consistent mechanical properties
• 3/8 inch threaded connection for direct engagement with standard pipe threads
• Square head design provides positive wrench grip for reliable torque application
• 9.1 mm thread size with 3.51 mm wall thickness for pressure-rated service
• Forged manufacturing method produces a dense, uniform grain structure

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/8 inch threaded pipe systems in plumbing, HVAC, and industrial piping applications.

Installation Notes

Installation is performed by licensed plumbers or pipefitters in accordance with applicable IPC or IFGC requirements. Isolate and depressurize the piping system completely before installing or removing any threaded plug. Apply an appropriate thread sealant or PTFE tape to the male threads before engagement. Do not over-drive the plug, as this can damage the fitting or the female threads of the receiving pipe or fitting body.