Graco 556648 Fitting, Union, Tube X 5/16
Brass union fitting for securely joining two 5/16 in. tube lines in Graco pneumatic lubrication systems.
- Fits 5/16 in. (7.9 mm) tube on both ends
- Brass construction for oil and grease applications
- Compatible with Graco Pneumatic Grease Jockey systems
- Graco Part No. 556648 (Lubriquip 435-470-040)
Reliable 5/16 Tube Union for Automatic Lubrication Systems
Compatible Machines
| Compatible Equipment | Application |
|---|---|
| Graco Grease Jockey Pneumatic Automatic Lubrication Systems | Connects two 5/16 in. lubrication tubes within pneumatic grease distribution systems. |
| Graco Grease Jockey Chassis Lubrication Systems | Used in automatic chassis lubrication installations for on-road vehicles. |
| Graco Single Line Parallel Lubrication Systems | Serves as a genuine replacement union fitting for 5/16 in. tubing circuits. |
Product Overview
The Graco 556648 Fitting, Union, Tube X 5/16 is a genuine OEM brass tube union designed to securely connect two sections of 5/16-inch tubing in Graco automatic lubrication systems. Manufactured for dependable sealing and long service life, this precision-machined fitting helps maintain consistent lubricant flow while minimizing the risk of leaks in demanding operating environments.
Designed specifically for pneumatic lubrication applications, the union provides a straightforward tube-to-tube connection without requiring adapters. Its durable brass construction offers excellent resistance to corrosion and wear, making it suitable for continuous use with both oil and grease lubrication systems.
Key Features
- Genuine Graco OEM replacement for dependable fit and performance.
- Designed as a 5/16-inch tube union for joining two equal-size tubing sections.
- Durable brass construction provides excellent corrosion resistance.
- Compatible with both oil and grease lubrication systems.
- Supports leak-resistant fluid transfer in automatic lubrication circuits.
- Ideal for maintenance, repair, and replacement of worn or damaged tube unions.
Applications
The Graco 556648 union fitting is commonly installed within automatic lubrication systems used on commercial vehicles, fleet equipment, industrial machinery, and other applications requiring reliable grease or oil distribution. Its purpose is to create a secure inline connection between two 5/16-inch lubrication tubes while maintaining uninterrupted lubricant flow throughout the system.
Frequently Asked Questions
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