SUR&R Inverted Flare Nut: Inverted Flare Nut, Steel, 350°F Op Temp - Max, -65°F Op Temp - Min
The SUR&R Inverted Flare Nut (MPN TR620) is a steel transmission connector designed for use with transmission oil cooler lines. It features an inverted flare connection and includes a dog ear, with an operating…
SKU 3G-OTH-487329
Need installation or engineering help?
Ask a question
Product Description
The SUR&R Inverted Flare Nut (MPN TR620) is a steel transmission connector designed for use with transmission oil cooler lines. It features an inverted flare connection and includes a dog ear, with an operating temperature range of -65°F to 350°F. Supplied as a 2-pack, this component is compatible with Grainger Part Number 52HJ26.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the SUR&R Inverted Flare Nut used for?
The SUR&R Inverted Flare Nut (MPN TR620) is used to connect transmission oil cooler lines in automotive and industrial hydraulic systems. Its steel construction and inverted flare design provide a leak-resistant seal under high vibration, with an operating range of -65°F to 350°F.
What are the specifications of the SUR&R Inverted Flare Nut?
The SUR&R Inverted Flare Nut is made of steel, features an inverted flare connection, and includes a dog ear for easy tightening. It operates from -65°F to 350°F, comes as a 2-pack, and is compatible with Grainger Part Number 52HJ26 for transmission oil cooler lines.
Where to buy the SUR&R Inverted Flare Nut worldwide?
3G Electric supplies the SUR&R Inverted Flare Nut (MPN TR620) worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this steel transmission connector to your facility, ensuring compliance with local import requirements.
How to install the SUR&R Inverted Flare Nut?
To install the SUR&R Inverted Flare Nut, align the inverted flare end with the transmission oil cooler line fitting and hand-tighten. Use a wrench on the dog ear to torque to manufacturer specifications—typically 15-25 ft-lbs for steel fittings—avoid over-tightening to prevent flare damage.
SUR&R Products
3G Electric supplies SUR&R transmission connectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









