Description
Product Overview
The LUBE USA 186211 tubing coupler is a male-thread union fitting designed to connect 4mm lubrication tubing while interfacing with threaded components in the system. It allows two tubing sections to be joined while also providing a threaded connection point for integration into lubrication circuits.
This makes it ideal for both system repairs and layout modifications.
Applications
- Centralized lubrication systems
- CNC machines and machining centers
- Connecting tubing to threaded ports or adapters
- Repairing or modifying lubrication lines
👉 Couplings are used to connect tubing runs and integrate them with system components in lubrication systems
Key Features
- Connects two 4mm (5/32”) tubing lines
- Includes threaded interface (M8×1) for system integration
- 5/16-24 compression connections for tubing
- Combines tubing connection and threaded mounting in one fitting
- Compatible with compression sleeves and tube inserts
- Ideal for repairs, extensions, and system modifications
- Durable construction for industrial use
Why This Part Matters
In lubrication systems, some connections require both tubing-to-tubing joining and integration with threaded components.
Without the correct coupling:
- Tubing cannot connect properly to system ports
- Repairs become more complicated
- System flexibility is limited
This fitting allows you to connect tubing while also tying into threaded system components, improving installation and serviceability.
When to Use This Coupler
- When connecting tubing to threaded system components
- When modifying or expanding lubrication systems
- When repairing damaged lines that require threaded integration
- When adapting between tubing and component connections
Specifications
- Part Number: 186211
- Type: Male thread coupling / union
- Tubing Size: 4mm (5/32”) × 4mm (5/32”)
- Compression Thread: 5/16-24
- Thread Type: M8×1
- Application: Tubing connection and system integration
📞 Need Help Matching Fittings?
Not sure if this coupler fits your system?
👉 Call us or request a quote—we can help match the correct tubing, fittings, and components.




