The GRACO 556638 is a brass male tube elbow fitting designed to connect 3/16 inch (4.8 mm) tubing to a 1/8 inch (3.2 mm) NPTF threaded port. It is intended for use with oil and grease in on-road vehicle lubrication systems, particularly as part of GRACO’s Grease Jockey Systems.

Key Features:

• Elbow fitting
• 3/16 in. (4.8 mm) tube x 1/8 in. (3.2 mm) NPTF
• Brass
• Oil, grease; for use with all Grease Jockey Systems
• Durable brass construction for reliable performance
• Male threaded connection for secure attachment
• Elbow design for flexible routing in tight spaces

Applications:
On-road vehicle lubrication systems, specifically for connecting tubing to threaded ports in automatic grease and oil delivery systems.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance within GRACO lubrication systems.
• Ensure tubing is cut cleanly and inserted fully into the fitting
• Use appropriate thread sealant on NPTF threads to prevent leaks
• Tighten fittings securely but avoid over-tightening to prevent damage
• Inspect fittings regularly for signs of wear or leaks