Midland Industries 63654 Cored Square Head Plug 3/4 Mpt 316 Ss

Product Description

The MIDLAND INDUSTRIES 63654 is a cored square head plug designed for use in 150 lb threaded piping systems. It connects via a 3/4-inch male pipe thread (MPT) with a 3/4-14 thread form conforming to ASME B1.20.1 dimensional standards. The body is machined from 316 stainless steel, offering strong resistance to corrosion in demanding service environments. At 0.085 pounds, it is a compact fitting measuring approximately 0.95 inches in length, 0.95 inches in width, and 0.9 inches in height. Licensed plumbers, pipefitters, and HVAC technicians routinely install these plugs to cap or temporarily close threaded pipe ends in both new construction and maintenance work.

This plug is rated for use with air, water, oil, natural gas, and steam media, making it suitable for a wide range of residential and commercial piping applications. The 316 stainless steel construction makes it a strong choice in applications where moisture, chlorides, or corrosive fluids are present, such as marine environments, chemical process lines, and food-service utility piping. It fits into standard 150 lb threaded piping systems wherever a square head plug of this connection size is required.

Key Features

• 316 stainless steel construction for superior corrosion resistance compared to standard 304 SS or iron fittings
• 3/4-inch MPT connection with 3/4-14 thread conforming to ASME B1.20.1
• Rated for 150 lb pressure class service
• Compatible with air, water, oil, natural gas, and steam media
• Square head drive allows installation and removal with a standard wrench
• Compact profile at 0.95 x 0.95 x 0.9 inches

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 150 lb threaded piping systems using 3/4-inch MPT connections where 316 stainless steel material is specified.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter. Depressurize and isolate the piping system fully before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly, following the sealant manufacturer's instructions and applicable code requirements such as the International Plumbing Code (IPC) or IFGC. Do not overtighten stainless steel fittings, as galling of threads can occur.