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The MIDLAND INDUSTRIES 4604O12 is a steel beaded insert fitting from the 4604 Series, designed to connect a 3/4-inch beaded stem hose end to a 3/4-inch male O-ring boss port. The beaded stem end locks a hydraulic hose in place with a clamp, while the male O-ring boss end threads into a corresponding female port for a leak-resistant, face-seal connection. Measuring 2.65 inches in length and weighing 0.205 pounds, this compact fitting is built for hydraulic plumbing applications where secure, reusable hose attachment is required. It is typically installed by hydraulic system technicians and fluid power mechanics working on mobile or industrial equipment.
This fitting is suited for hydraulic hose assemblies in mobile equipment, industrial machinery, and fluid power systems. The O-ring boss thread form is widely used in hydraulic circuits to minimize leakage at connection points. The beaded stem end accepts a push-on or clamp-style hose, making it a practical choice for high-vibration environments where hose retention is critical. Minimum order quantity is one unit.
Designed as an OEM-style replacement or new-installation fitting for hydraulic hose assemblies requiring a 3/4-inch beaded stem to 3/4-inch male O-ring boss transition in steel hydraulic circuits.
Installation should be performed by a qualified hydraulic technician or fluid power mechanic. Depressurize and fully isolate the hydraulic system before removing or installing any fittings. Inspect the O-ring on the boss end before assembly and replace it if damaged or missing. Tighten the O-ring boss connection to the port per the equipment manufacturer's torque specification, and secure the hose to the beaded stem with an appropriately rated clamp.
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.
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