The GRACO 15D955 is a packing nut, typically constructed from durable metal, designed to secure and compress packing materials within GRACO fluid handling equipment. Its primary function is to maintain a tight seal around moving parts such as pistons or shafts, preventing leaks and ensuring reliable operation of pumps and valves.

Key Features:

• Packing Nut
• Compatible with select GRACO fluid valves and pumps (see equipment manual for specific models)
• Designed for ease of maintenance and replacement
• Provides reliable sealing for moving components
• Supports long service life in demanding industrial environments

Applications:
Used in GRACO air actuated fluid valves and similar equipment to secure packing and prevent leaks during operation.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, performance, and safety, reducing the risk of leaks and equipment failure.
• Lubricate threads and o-rings with water-resistant grease before installation
• Torque to manufacturer specifications (for similar nuts, torque may be specified as 45 ± 5 ft-lbs or similar; always check the manual for exact values)
• Inspect packing and surrounding components for wear or damage during installation
• Replace packing materials if worn or damaged