Steel DN 6.3 flat face hydraulic socket with G 1/4 inch female threads. They are typically used for liquid lines to quickly connect and disconnect secure connections.
The G 1/4 inch female threads allow for it to be threaded onto a matching male threaded part. The maximum operating pressure is 350 bar (5075 psi). The coupling is suitable for temperatures between -25 to 125 °C (-13 to 257 °F). The seal material is NBR. The steel housing has a galvanic zink plated surface protection. The coupling complies with the ISO 16028 standard.
Pros:
- No dirt can get in as the coupling can simply be wiped clean due to the smooth flat face surface
- Axial forces can be absorbed well due to the coupling’s design, especially suited for use on hydraulic hoses
- Adheres to ISO 16028, allowing it to be interchangeable between brands
Specifications
Connection size : 1/4 inch
Nominal diameter (mm) : 6.3
Plug diameter : 16.2 mm
Socket diameter : 28 mm
Connection type : Inner thread cylindrical BSPP-G
Material : Steel
Seal material : NBR (nitrile rubber)
Max pressure at 20 °C (bar) : 350
Min temperature (°C) : -25
Max temperature (°C) : 125
Standard : ISO 16028
Shape : Coupling (female)
Surface protection : Galvanic zink plated
With dust cap : No

![NBR O-ring 74.3 x 2.62mm (OD 79.54mm) 70 Shore A [20 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_7c518be1-35d4-4b10-bd38-eb392929e11c.webp)
![FKM O-ring 8.5 x 1mm (OD 10.5mm) 80 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_2b77ae00-bf13-4bcd-84a2-e90c57983769.webp)
![FKM O-ring 17 x 3mm (OD 23mm) 80 Shore A [20 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_dd732073-cb41-4759-a0b9-fcec030b133a.webp)
![EPDM O-ring 7 x 1mm (OD 9mm) 70 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_3169e177-ec2e-4378-9845-6a563f278237.webp)
Reviews
There are no reviews yet.