The GRACO 161800 Adapter is a metal fitting designed to connect different pipe thread types within GRACO fluid handling equipment. Its intended use is to facilitate secure and leak-free transitions between 3/4” NPT (National Pipe Thread) and 3/8” NPSM (National Pipe Straight Mechanical) connections, commonly found in spray equipment and fluid transfer systems.

Key Features:

• Pipe thread adapter
• 161800
• Compatible with GRACO equipment requiring 3/4” NPT to 3/8” NPSM connections
• Compact size (Height: 1.8 in / 4.572 cm, Length: 1.35 in / 3.429 cm)
• Durable metal construction for reliable performance
• Designed for secure, leak-free connections

Applications:
Used in GRACO spray equipment and fluid transfer systems to adapt between 3/4” NPT and 3/8” NPSM pipe threads, ensuring proper fit and function in various industrial and maintenance applications.

Installation Notes:

• Using genuine GRACO adapters ensures compatibility, reliability, and safety in fluid handling systems.
• Ensure threads are clean and free of debris before installation.
• Apply appropriate thread sealant if required for the application.
• Hand-tighten before using a wrench to avoid cross-threading.
• Check for leaks after installation and during operation.