HANSEN Hydraulic Quick Connect Hose Coupling: 3/8 in, Steel, 53 lpm Max. Flow Rate
The HANSEN ST Series Hydraulic Quick-Connect Coupling Plug (SKU 55JU77, MPN 3T21) is a steel-bodied coupling with a 3/8"-18 FNPT connection and a maximum flow rate of 53 lpm. 3G Electric interprets your demand for…
SKU 3G-OTH-595905
Need installation or engineering help?
Ask a question
Product Description
The HANSEN ST Series Hydraulic Quick-Connect Coupling Plug (SKU 55JU77, MPN 3T21) is a steel-bodied coupling with a 3/8"-18 FNPT connection and a maximum flow rate of 53 lpm. 3G Electric interprets your demand for this genuine HANSEN component, sourcing it across our 14 industrial departments with specialist depth in pumps and controls.
Frequently Asked Questions
What is the HANSEN 3T21 hydraulic quick connect coupling used for?
The HANSEN 3T21 ST Series plug is used for quick, leak-free connection and disconnection of hydraulic lines in industrial fluid power systems. It suits applications requiring a 3/8"-18 FNPT port and handles flow up to 53 lpm. 3G Electric sources this genuine HANSEN component across 14 industrial departments.
What are the specifications of the HANSEN 3T21 coupling?
The HANSEN 3T21 is a steel-bodied ST Series quick-connect coupling plug with a 3/8"-18 FNPT connection. Maximum flow rate is 53 lpm. It is designed for hydraulic systems and is manufactured by HANSEN. 3G Electric supplies this genuine part with specialist expertise in pumps and controls.
Where to buy the HANSEN 3T21 coupling worldwide?
3G Electric supplies the genuine HANSEN 3T21 hydraulic coupling worldwide. We interpret your demand, source the component, and handle full logistics and customs clearance for delivery to your location. Contact us for availability and lead time. We serve global industrial customers across 14 departments.
How to select the correct HANSEN quick connect coupling?
To select the correct HANSEN ST Series coupling, match the thread size (3/8"-18 FNPT for the 3T21), maximum flow rate (53 lpm), and material (steel) to your hydraulic system requirements. Verify pressure rating and fluid compatibility. 3G Electric can help you confirm the right part for your application.
Used in
Common applications for HANSENHANSEN Products
3G Electric supplies HANSEN st series hydraulic quick-connect coupling plugs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









