304 Stainless Steel Hex Bushing 3/8" MPT x 1/4" FPT 150# – OEM Replacement Fitting
Part Number: 5203
Category: Pressure Washer Parts → Fittings & Adapters → Stainless Steel Fittings
Type: 304 Stainless Steel Hex Bushing
The 304 Stainless Steel Hex Bushing 3/8" MPT x 1/4" FPT (Part #5203) is a durable OEM replacement fitting designed to reduce thread sizes while maintaining a secure, leak-resistant connection in pressure washer systems, water transfer equipment, chemical processing systems, marine applications, food-grade equipment, and industrial fluid handling installations. Featuring a 3/8-inch Male Pipe Thread (MPT) exterior and a 1/4-inch Female Pipe Thread (FPT) interior, this reducing bushing allows larger threaded ports to accommodate smaller fittings, valves, gauges, hoses, and accessories.
Key Features & Benefits
- Genuine OEM replacement fitting
- 3/8" MPT x 1/4" FPT connection
- 304 stainless steel construction
- 150# stainless steel fitting
- Rated up to 800 PSI
- Excellent corrosion resistance
- Hex body for easy installation and removal
- Leak-resistant threaded connections
- Reduces larger ports to smaller thread sizes
- Suitable for water, air, and fluid transfer systems
- Durable industrial-grade construction
- Long service life and reliable performance
Technical Specifications
Part Number: 5203
Product Type: Hex Bushing
Connection Size I: 3/8" MPT
Connection Size II: 1/4" FPT
Thread Type: Male Pipe Thread (MPT) x Female Pipe Thread (FPT)
Material: 304 Stainless Steel
Pressure Rating: 150#
Maximum Pressure: 800 PSI
Configuration: Reducing Hex Bushing
OEM Replacement: Yes
Application: Thread Size Reduction and Component Adaptation
Common Applications
- Pressure washer systems
- Water transfer equipment
- Chemical processing systems
- Marine equipment
- Food and beverage processing equipment
- Agricultural spray systems
- Compressed air systems
- Industrial plumbing systems
- Fluid transfer equipment
- Wash-down systems
- General maintenance and repair applications
Performance Benefits
- Adapts larger ports to smaller threaded connections
- Excellent corrosion resistance in wet environments
- Durable stainless steel construction
- Supports operating pressures up to 800 PSI
- Easy installation using integrated hex body
- Reliable leak-resistant performance
- Suitable for commercial and industrial use
- Long-lasting service life
Signs Replacement May Be Needed
Replace the fitting if you notice:
- Fluid or air leaks
- Damaged or stripped threads
- Excessive corrosion or pitting
- Cracks or physical damage
- Difficulty obtaining a proper seal
- Wear from repeated installation and removal
Installation Notes
- Shut off system pressure before servicing.
- Inspect all mating threads for damage.
- Apply appropriate thread sealant or PTFE thread tape.
- Thread the male end into the larger receiving port.
- Install the mating component into the female threaded opening.
- Tighten using a wrench on the hex body.
- Pressurize the system and inspect for leaks.
Important: Verify thread compatibility, material compatibility, and pressure requirements before installation. Always ensure the fitting's pressure rating meets or exceeds the operating conditions of the system.
Maintenance Recommendations
- Inspect fittings regularly for leaks.
- Check threads for wear or damage.
- Keep fittings clean and free from contamination.
- Replace damaged fittings promptly.
- Verify proper sealing after maintenance.
- Monitor system pressure and fitting condition during operation.
