Holyoke Fittings FN12 Sae Flare Short Forged Nut 1/2 Inches Od Tube Brass Fitting

Product Description

The Holyoke Fittings FN12 is a short forged nut designed for SAE flare fitting connections on 1/2 inch OD tubing. This fitting is a standard component in refrigeration, HVAC, and plumbing systems where reliable, leak-free flare connections are required. SAE flare fittings are widely used across the trade because they create a strong mechanical seal between tubing and components without the need for solder or adhesive. The flare nut threads onto the male flare fitting body and compresses the flared end of the tube to form a tight, pressure-rated seal. The short forged nut design provides a compact profile, making it easier to work in tight spaces where a standard-length nut may not fit or may be difficult to torque properly. Forged brass construction gives this nut superior strength compared to cast alternatives. Forging aligns the grain structure of the metal, resulting in better resistance to pressure, vibration, and mechanical stress. Brass is the preferred material for flare fittings in HVAC and refrigeration work because it resists corrosion, handles a wide range of temperatures, and is compatible with refrigerants, oils, and common gases used in the trade. HVAC technicians, refrigeration mechanics, and plumbers rely on forged brass flare nuts like the FN12 when assembling or servicing copper tubing systems. This nut is sold individually and ships from domestic production in the USA, which supports consistent quality and reliable availability for contractors and wholesale distributors. At 0.08 pounds and with a compact footprint under 1 inch in all dimensions, it is easy to stock and handle on the job site. Whether you are building a new refrigerant circuit, repairing an existing system, or assembling a gas line, the FN12 delivers dependable performance in a simple, proven design.

• Short forged nut for SAE flare connections on 1/2 inch OD copper tubing
• Forged brass construction for superior strength, corrosion resistance, and refrigerant compatibility
• Compact dimensions for use in tight spaces during HVAC, refrigeration, and plumbing installations

Product Highlights

The Holyoke Fittings FN12 short forged brass nut delivers a reliable SAE flare connection for 1/2 inch OD tubing, combining domestic USA manufacturing with forged brass durability for demanding trade applications.

Product Information

Standard Information

• Brand: HOLYOKE FITTINGS
• Manufacturer Part Number: FN12

Technical Specifications

• Tube Size: 1/2 inches OD
• Material: Brass
• Fitting Type: SAE Flare Short Forged Nut
• Height: 0.94 inches
• Length: 0.9 inches
• Width: 0.943 inches
• Weight: 0.08 pounds
• Country of Origin: USA
• Unit of Measure: Each
• UPC: 745565003805