Male O-Ring Boss Union Adapter for 1/2 Inch Hydraulic Systems - Steel
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Male O-Ring Boss Union Adapter for 1/2 Inch Hydraulic Systems – Steel

Original price was: $5.59.Current price is: $1.67.

SKU: SMA-478-6403NWO8 Category:

Description

When you’re connecting two hydraulic lines and need a straight-through union that’s adjustable, this handy fitting does exactly what you need. Whether you’re extending a hydraulic line that came up short or joining two sections together, this male O-ring boss union makes those hydraulic connections quick and reliable. The adjustable design lets you position it just right without fighting threaded lines.

What You’re Getting

  • Adjustable male O-ring boss union connects two 1/2-inch hydraulic lines straight through
  • Steel construction handles high-pressure hydraulic systems without cracking or failing
  • 3/4-16 thread pitch on both ends matches standard ORB fittings on most tractors
  • O-ring sealing design prevents leaks better than pipe thread fittings
  • Precision-machined threads ensure smooth installation and removal

Built for Real Farm Work

This union fitting works with the hydraulic systems you’ll find on most tractors, loaders, and implements. Whether you’re running remote cylinders on a hay rake, connecting loader lines, or plumbing hydraulics for a three-point attachment, this fitting handles the pressure and vibration that comes with farm equipment operation.

Made to Last

Farm equipment puts hydraulic fittings through the wringer with pressure spikes, constant vibration, and exposure to the elements. This steel union is built to take it all and keep sealing properly. The O-ring design prevents the gradual loosening you get with pipe threads, so it stays tight season after season.

Good to Know

Always use fresh O-rings when installing hydraulic fittings—they’re cheap insurance against leaks. Clean both surfaces before assembly, and don’t over-tighten since the O-ring does the sealing, not thread torque. A little hydraulic fluid on the O-ring helps it seat properly during installation.

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