

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The MIDLAND INDUSTRIES 2403106 is a steel JIC tube union designed to connect two male JIC flare fittings in a hydraulic line. This reducer-style union mates a 5/8-inch (7/8-14 thread) male JIC end to a 3/8-inch (9/16-18 thread) male JIC end, allowing technicians to join or transition between two differently sized JIC tube lines in a single fitting. Constructed from steel, it is rated for operating temperatures up to 375 degrees F. The fitting measures 1.7 inches in length and weighs 0.15 pounds, making it a compact, lightweight component suited for tight hydraulic plumbing layouts. Installation is handled by hydraulic technicians and fluid power specialists working on mobile or industrial hydraulic systems.
This fitting belongs to the Midland Industries 2403 Series Steel JIC Adapters line and is intended for hydraulic applications where two male JIC tube ends must be joined with a reducing union. Typical use cases include hydraulic circuit assembly, repair, and reconfiguration on industrial machinery, mobile equipment, and fluid power systems where 37-degree JIC flare connections are the standard. The union accommodates size transitions without additional adapters, simplifying line routing in constrained spaces.
Designed for use in hydraulic systems utilizing 37-degree JIC flare fittings. Compatible with hydraulic lines and components using 7/8-14 and 9/16-18 male JIC threaded connections per SAE standards.
Installation is typically performed by a qualified hydraulic technician or fluid power specialist. Depressurize and drain the hydraulic circuit completely before disconnecting any fittings or installing this union. Inspect both mating JIC flare seats for damage or contamination before assembly, and tighten to the fitting manufacturer's recommended procedure using appropriate flare-nut wrenches. Do not over-torque, as this can damage the 37-degree flare seating surface and cause leaks.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!