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The Holyoke Fittings 41fpsw-10 is a 5/8 inches brass forged flare swivel nut designed for use in refrigeration, HVAC, and plumbing systems where secure, leak-free flare connections are required. This fitting is manufactured using a forging process, which compresses brass under high pressure to produce a denser, stronger part than castings. The result is a fitting that holds up to pressure cycling, vibration, and the stresses common in mechanical systems. Swivel nut fittings are a preferred choice among HVAC technicians and plumbers because they allow the nut to rotate freely during installation, reducing the risk of cross-threading and making it easier to achieve a proper seat on flared tubing without twisting the line itself. The 5/8 inches size makes this fitting suitable for connecting refrigerant lines, gas lines, and other fluid-carrying tubing where SAE flare standards apply. Brass is the material of choice for flare fittings in these applications because it resists corrosion, is compatible with a wide range of refrigerants and fluids, and provides reliable sealing at the flare interface. Each package contains 25 units, making this a practical buy for contractors, service technicians, and supply houses that need to stock a reliable quantity for ongoing work. Whether used in new construction, equipment replacement, or field repairs, the 41fpsw-10 delivers consistent performance. This product carries a Proposition 65 warning, which is standard for brass fittings containing trace amounts of lead. Always follow local codes and safety guidelines when working with fittings in potable water applications.
The Holyoke Fittings 41fpsw-10 is a forged brass flare swivel nut built for reliable, leak-free performance in demanding HVAC and plumbing installations. It is sold in a 25-unit pack, making it a convenient and cost-effective choice for professional contractors and supply stocking.
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