Lennox Y7105 – JMF 521920898980 is a 1/2 inch brass short forged flare nut supplied in a convenient 5 pack, designed for dependable use in HVAC and refrigeration flare connections. Manufactured from high-quality forged brass, this flare nut provides excellent strength, corrosion resistance, and long-term durability in demanding residential and commercial applications.

This short-style flare nut is commonly used with copper tubing flare fittings, ensuring a tight, leak-resistant seal when properly installed. Its precision-machined threads allow smooth engagement, reducing the risk of cross-threading during installation or service. Ideal for technicians, contractors, and maintenance professionals, this pack supports multiple installations or repairs while maintaining consistent OEM-level quality.

 

Product overview:

The JMF 1/2 inch brass short forged flare nut is engineered for secure flare connections in HVAC and refrigeration systems. Its compact design makes it suitable for tight spaces, while forged brass construction ensures reliable performance under pressure and temperature variations.

 

Specifications:

Brand: JMF
Lennox part number: Y7105
Manufacturer part number: 521920898980
Fitting size: 1/2 inch
Material: Forged brass
Type: Short flare nut
Application: HVAC and refrigeration flare connections
Quantity: 5 per pack