6401 O-Ring to Pipe, Male ORB x Male NPT Straight
The 6401 O-Ring to Pipe adapter provides a straightforward way to connect an SAE O-Ring Boss (ORB) port with a Male NPT pipe connection. Its straight configuration creates a compact transition between different hydraulic thread types while maintaining a dependable connection for fluid-power applications.
Male ORB x Male NPT Connection
The 6401 combines a Male ORB connection on one end with a Male NPT connection on the other. This makes it a practical choice when hydraulic equipment uses an ORB port but the connected component or pipe assembly requires NPT threading.
The ORB side uses an elastomeric O-ring sealing method, while the NPT side provides a tapered pipe-thread connection. Together, they provide a practical connection between different hydraulic components.
Straight Design for Clean Hydraulic Routing
The straight adapter configuration keeps the connection direct and compact. It is useful where components can be aligned without requiring a 45° or 90° directional change.
This design can help simplify hydraulic hose assemblies, equipment connections, and fluid-transfer layouts while minimizing unnecessary fitting changes.
High-Strength Carbon Steel Construction
Gear House Hydraulics lists the 6401 series with high-strength carbon steel construction and a corrosion-resistant finish. This construction is intended for demanding hydraulic and industrial environments where reliable fittings are essential.
The steel construction makes the 6401 suitable for applications ranging from hydraulic power units and mobile equipment to industrial fluid-transfer systems.
Key Features
- Male ORB x Male NPT connection
- Straight adapter configuration
- SAE O-Ring Boss sealing connection
- High-strength carbon steel construction
- Corrosion-resistant finish
- Compact installation
- Multiple size combinations
- Suitable for high-pressure hydraulic applications
- Designed for hydraulic and industrial fluid-transfer systems
Why Choose 6401 Hydraulic Adapters?
Choosing the right adapter helps prevent unnecessary connection changes and keeps hydraulic assemblies organized. The 6401 provides two commonly used connection types in one compact straight fitting.
Its multiple size combinations also make it easier to match different port and pipe requirements across hydraulic equipment.
Select the Correct 6401 Fitting
Before ordering, confirm both connection sizes and thread types on your equipment. The ORB and NPT sizes should match the corresponding ports or components being connected.
For hydraulic systems operating under demanding conditions, always verify that the selected fitting is appropriate for the pressure, fluid, temperature, and complete system requirements.
Gear House Hydraulics 6401 Adapters
Gear House Hydraulics provides the 6401 series in multiple configurations for hydraulic, mobile, agricultural, construction, and industrial applications. With a range of equal and reducing sizes available, you can select the adapter that best matches your existing hydraulic connections.
For a clean ORB-to-NPT transition, the 6401 straight adapter offers a practical connection solution without adding an unnecessary directional bend.
FAQs
What is a 6401 O-Ring to Pipe adapter?
The 6401 is a straight hydraulic adapter with a Male ORB connection on one end and a Male NPT connection on the other.
What does the ORB side use for sealing?
The Male ORB side uses an elastomeric O-ring to create the sealing connection at the hydraulic port.
Is the 6401 a straight adapter?
Yes. The 6401 is designed as a straight Male ORB × Male NPT adapter for direct connection between the two thread types.
What material is used for the 6401?
The collection lists high-strength carbon steel construction with a corrosion-resistant finish.
What sizes are available?
The 6401 collection includes multiple equal and reducing combinations ranging from smaller hydraulic sizes through larger connections, including sizes up to 1-1/2 × 1-1/2.
Where can 6401 adapters be used?
They are suitable for hydraulic hose assemblies, pumps, valves, cylinders, power units, agricultural machinery, construction equipment, mobile hydraulics, and industrial fluid-transfer systems.
