Quick Connect Socket 1/2" FNPT Brass – OEM Replacement Part
Part Number: 4328
Category: Pressure Washer Fittings → Quick Connect Couplers → Quick Connect Sockets
Type: Straight-Through Brass Quick Connect Socket
The Quick Connect Socket 1/2" FNPT Brass is a heavy-duty OEM replacement coupler designed for high-flow fluid transfer applications where minimal pressure loss is critical. Featuring a straight-through Series ST design, this coupler allows unrestricted fluid flow without internal valving, making it ideal for pressure washing systems, steam cleaning equipment, carpet cleaning machines, and other professional fluid transfer applications.
Key Features & Benefits
- OEM-quality straight-through quick connect socket
- Durable brass construction
- Series ST smooth-bore design for maximum flow
- Minimal pressure drop during operation
- Ball-lock coupling mechanism
- Manual connect and disconnect operation
- 1/2" FNPT threaded connection
- Corrosion-resistant brass body
- Ideal for pressure washing and fluid transfer systems
- Designed for commercial and industrial applications
Technical Specifications
Product Type: Quick Connect Socket / Coupler
Series: ST Straight-Through
Material: Brass
Thread Size: 1/2" FNPT
Thread Type: Female National Pipe Thread
Locking Mechanism: Ball Lock
Operation: Manual
Pressure Rating: 3400 PSI (with compatible steel plug)
Flow Path: Smooth Bore / Straight-Through
Application: High-Flow Fluid Transfer
OEM Replacement: Yes
Typical Applications
- Pressure washer systems
- Steam cleaning equipment
- Carpet cleaning machines
- Industrial fluid transfer systems
- Wash-down equipment
- Commercial cleaning systems
- High-flow plumbing assemblies
- Equipment maintenance and repairs
- Professional cleaning operations
Performance Advantages
- Straight-through design minimizes pressure loss
- Smooth bore construction maximizes fluid flow
- Ball-lock mechanism provides secure connections
- Brass construction offers excellent corrosion resistance
- Allows fast equipment changes and servicing
- Suitable for high-flow cleaning applications
- Improves overall system efficiency
- Designed for demanding commercial environments
- Provides reliable long-term performance
Maintenance Recommendations
- Inspect the socket regularly for wear, corrosion, or damage.
- Verify proper engagement with compatible plugs before operation.
- Keep coupling surfaces clean and free of debris.
- Replace worn components immediately.
- Check threaded connections periodically for leaks.
- Inspect couplings routinely and replace if excessive wear is present.
- Never exceed the rated operating pressure of the coupling assembly.
