SUR-R Standard Steel Inverted Flare Tube Fitting Nut, 3/8"-24 Thread, 4-Pack
The SUR-R Flared Fitting Nut (MPN BR135) is a standard steel inverted flare tube fitting for 3/16 in OD fitting size. This 4-pack features a 3/8"-24 thread size A, providing a flared connection type for industrial…
SKU 3G-OTH-741911
Also listed as: BR 135 · BR-135
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Product Description
The SUR-R Flared Fitting Nut (MPN BR135) is a standard steel inverted flare tube fitting for 3/16 in OD fitting size. This 4-pack features a 3/8"-24 thread size A, providing a flared connection type for industrial tubing systems.
Frequently Asked Questions
What is a SUR-R flared fitting nut used for?
A SUR-R flared fitting nut creates a leak-proof seal in industrial tubing systems by compressing a flared tube end against a mating cone. It is commonly used in hydraulic, pneumatic, and instrumentation lines where vibration resistance and reliable connections are required.
What are the specifications of the SUR-R BR135 flared fitting nut?
The SUR-R BR135 is a standard steel inverted flare tube fitting nut with a 3/16 in OD fitting size and a 3/8"-24 thread size A. It comes in a 4-pack and provides a flared connection type for industrial tubing systems.
Where to buy SUR-R flared fitting nuts worldwide?
3G Electric supplies SUR-R flared fitting nuts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine parts like the BR135 to your facility, regardless of location.
How to install a SUR-R inverted flare fitting nut?
To install a SUR-R inverted flare fitting nut, first cut the tubing square and deburr the end. Slide the nut onto the tube, then use a flaring tool to create a 45° flare. Tighten the nut onto the mating fitting with a wrench until snug—avoid over-tightening to prevent damage.
SUR-R Products
3G Electric supplies SUR-R standard steel inverted flare tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
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Compatible alternatives & equivalents
- PARKER Brass flared fitting plug with 3/8 in OD fitting size and 45-degree flare connection, meeting SAE J512 standards. Used to seal the end of flared tubes or fitting ports in hydraulic, pneumatic, and fluid-handling systems. Supplied in a 10-pack
- SUR&R Brass inverted flare union for joining hydraulic brake lines. Features 7/16"-24 thread size and 1/4 in outside diameter. Bronze color. Supplied in a 4-pack. Used in automotive and equipment braking circuits