The GRACO 556404 is a reducing bushing designed to connect 3/8 NPT male threads to 1/4 NPT female threads. It is typically used in lubrication and fluid handling systems to adapt between different pipe or fitting sizes. The material is not specified in available sources, but it is commonly made from durable metals such as steel or brass for industrial applications. Its intended use is to ensure secure and leak-free connections within GRACO equipment and compatible systems.

Key Features:

• Reducing Bushing
• 3/8 NPT male x 1/4 NPT female
• Compatible with GRACO lubrication and fluid handling systems; also referenced by Lubriquip (412-170-030) and Manzel (36X1-3)
• Hex design for easy installation and removal
• Reliable connection for reducing pipe sizes
• Durable construction for industrial environments

Applications:
Used in lubrication systems, fluid transfer, and maintenance applications where adaptation between 3/8 NPT and 1/4 NPT fittings is required. Ensures optimal lubrication, reduces wear and tear, and minimizes downtime in industrial equipment.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and safety in lubrication and fluid handling systems.
• Ensure threads are clean and free from debris before installation
• Apply appropriate thread sealant or tape to prevent leaks
• Tighten securely using a wrench on the hex portion for proper torque
• Inspect regularly for signs of wear or leaks as part of routine maintenance
• Follow manufacturer guidelines for installation and maintenance
• Use only compatible fittings and adapters
• Replace worn or damaged bushings promptly to maintain system integrity