AC Nut 1/2 Inch Heavy – Heavy Duty Brass Flare Nut for Split AC Copper Pipe | Refrigerant Line Union Nut
Heavy-duty 1/2 inch brass flare nut used to join the copper refrigerant pipe between the indoor and outdoor units of a split AC. The "heavy" build is thicker and more robust than the standard 1/2" nut, giving a stronger grip and better resistance to cross-threading during repeated installation and servicing. Fits standard 1/2" flared copper tubing, commonly used on the suction (gas) line of mid to large tonnage units. Compatible with all AC brands.
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Specifications
Key technical details at a glance
- grade
- Heavy (thicker wall, reinforced vs. standard nut)
- material
- Solid brass
- nut size
- 1/2 inch (fits 1/2" OD copper pipe)
- head type
- Hexagonal, wrench/spanner fit
- part type
- Heavy-duty brass flare nut (refrigerant line union nut)
- seal type
- Metal-to-metal flare seal, no gasket needed
- typical use
- Suction (gas) line, mid–large tonnage split AC units
- compatibility
- fits all split AC brands (match pipe size)
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