Midland Industries SS2403-12-06 Jic Union Adapter

Product Description

The MIDLAND INDUSTRIES SS2403-12-06 is a stainless steel JIC union adapter designed to connect two male JIC fittings of different sizes in a single inline assembly. The larger end accepts a 3/4-inch Male JIC connection with a 1-1/16-12 thread, while the smaller end accepts a 3/8-inch Male JIC connection with a 9/16-18 thread. Constructed from 316 stainless steel, the fitting is rated to 5000 psi maximum operating pressure and is capable of withstanding temperatures up to 1000 degrees F. Overall length is 1.85 inches. This adapter is installed by licensed plumbers, pipefitters, hydraulic technicians, and industrial mechanics working on high-pressure fluid or gas line assemblies.

This fitting is suited for use in hydraulic systems, fuel lines, high-pressure fluid transfer, and industrial plumbing applications where a size-reducing male-to-male JIC union connection is required. The SS2403 Series is built for demanding service environments where pressure integrity and corrosion resistance are critical. Its 316 stainless steel construction makes it a practical choice in corrosive or high-temperature environments such as marine, chemical processing, and HVAC hydronic systems.

Key Features

• 316 stainless steel construction for superior corrosion resistance in harsh service environments
• Rated to 5000 psi maximum operating pressure for high-pressure hydraulic and fluid line use
• Temperature capability up to 1000 degrees F for high-heat applications
• Reduces from 3/4-inch Male JIC (1-1/16-12 thread) to 3/8-inch Male JIC (9/16-18 thread)
• Compact 1.85-inch overall length minimizes space requirements in tight installations
• Part of the SS2403 Series JIC union adapter line for consistent fitment standards

Compatibility

Designed as an OEM-style replacement or new-installation fitting for high-pressure hydraulic, fuel, and fluid transfer line systems using standard JIC 37-degree flare connections.

Installation Notes

Installation should be performed by a qualified pipefitter, hydraulic technician, or licensed plumber familiar with JIC 37-degree flare fittings. Depressurize and isolate the line completely before removing any existing fittings or making new connections. Hand-tighten the fitting first to confirm thread engagement, then wrench-tighten to the assembly standard appropriate for the line pressure and tubing material. Verify for leaks before returning the system to full operating pressure.