Brass Hex Nipple 3/8" MPT – OEM Replacement Fitting
Part Number: 2137
Category: Pressure Washer Parts → Fittings & Adapters → Brass Nipples & Connectors
Type: Brass Hex Nipple
The Brass Hex Nipple 3/8" MPT (Part #2137) is a durable OEM replacement fitting designed to connect two female-threaded components in pressure washer systems, pumps, plumbing assemblies, pneumatic equipment, and industrial fluid transfer applications. Featuring 3/8-inch Male Pipe Thread (MPT) connections on both ends, this hex nipple provides a secure, leak-resistant connection while maintaining efficient fluid or air flow throughout the system.
Key Features & Benefits
- Genuine OEM replacement fitting
- 3/8" MPT x 3/8" MPT configuration
- Hex body for easy wrench installation
- Durable brass construction
- Corrosion-resistant material
- Leak-resistant threaded connections
- Connects two female-threaded components
- Compact and space-saving design
- Suitable for pressure, fluid, and air systems
- Long service life and dependable performance
- Ideal for repairs, upgrades, and custom assemblies
Technical Specifications
Part Number: 2137
Product Type: Hex Nipple
Connection Size I: 3/8" MPT
Connection Size II: 3/8" MPT
Thread Type: Male Pipe Thread (MPT) x Male Pipe Thread (MPT)
Material: Brass
OEM Replacement: Yes
Application: Component Connection and Thread Extension
Common Applications
- Pressure washer systems
- Pump assemblies
- Pressure gauge installations
- Water supply systems
- Pneumatic and compressed air systems
- Chemical application equipment
- Industrial fluid transfer systems
- Agricultural equipment
- Wash-down systems
- Commercial cleaning equipment
- General maintenance and repair projects
Performance Benefits
- Provides secure connection between female-threaded components
- Supports system modifications and extensions
- Leak-resistant threaded connections
- Corrosion-resistant for long service life
- Durable construction for demanding environments
- Simplifies component compatibility
- Easy wrench installation with hex body
- Supports efficient fluid and air flow
Signs Replacement May Be Needed
Replace the fitting if you notice:
- Damaged or stripped threads
- Visible corrosion or deterioration
- Fluid or air leaks
- Cracked fitting body
- Loose connections
- Difficulty maintaining a proper seal
- Excessive wear from repeated installation
Installation Notes
- Shut off system pressure before servicing.
- Inspect all mating threads for wear or damage.
- Apply appropriate thread sealant or PTFE thread tape.
- Thread the fitting into both female ports by hand.
- Tighten securely using a wrench on the hex body.
- Avoid overtightening to prevent thread damage.
- Pressurize the system and inspect for leaks.
Important: Verify compatibility with your system's thread sizes, pressure requirements, and application before installation.
Maintenance Recommendations
- Inspect threaded fittings regularly for leaks.
- Check connections during routine maintenance.
- Replace damaged or worn fittings promptly.
- Keep threads clean and free from debris.
- Verify proper sealing after servicing.
- Avoid overtightening during installation and maintenance.
