Midland Industries 44635LF Countersunk Plug 1 in Mpt Bronze

Product Description

The MIDLAND INDUSTRIES 44635LF is a square drive countersunk plug designed to seal threaded pipe openings in water service and plumbing distribution systems. Manufactured from lead-free bronze, it threads into 1-inch male pipe thread (MPT) ports using a 1-11-1/2 thread form and is rated for a 125 lb pressure class. The plug measures 0.75 inches in length with a 0.59-inch socket size for a square drive tool. At 0.27 pounds, it is a compact, corrosion-resistant fitting suited for potable water applications where lead-free compliance is required. Licensed plumbers and water service technicians are the primary installers.

This plug is used in residential and light commercial potable water systems, water meter installations, and distribution line assemblies where threaded pipe ends require a secure, pressure-rated seal. The lead-free bronze construction makes it appropriate for use in systems that must meet federal and state lead-free mandates for drinking water contact. It conforms to AWWA C800, ASME B16.15, ASME B1.20.1, WW-P-460C, and MSS-SP-106 dimensional and material standards, making it a code-compliant choice for new installation and repair work.

Key Features

• Lead-free bronze construction meets potable water contact requirements
• 1-inch MPT connection with 1-11-1/2 thread form for standard pipe fitment
• 125 lb pressure class rating for water service applications
• Square drive countersunk design for low-profile seating and wrench access
• Compliant with AWWA C800, ASME B16.15, ASME B1.20.1, WW-P-460C, and MSS-SP-106
• Compact 0.75-inch length with 0.59-inch socket size

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-inch MPT threaded ports in lead-free bronze plumbing and water service assemblies conforming to AWWA and ASME dimensional standards.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC requirements. Shut off the water supply and relieve system pressure before removing or installing any threaded plug. Apply an appropriate thread sealant or PTFE tape to the male threads before seating the plug. Use a square drive tool matched to the 0.59-inch socket size to avoid damaging the drive recess.