The GRACO 189990 SPRING, ADJUSTER is a small, precision-engineered component designed to regulate spring tension within GRACO spray equipment. Its material is not explicitly specified in available documentation, but it is typically constructed from durable metals such as steel or stainless steel for longevity and reliability. The part is intended for use in GRACO airless spray guns and similar equipment, where it helps maintain consistent spring pressure for optimal trigger and valve operation. Key Features: Spring Adjuster SKU:. 189990; Dimensions: 0.25 x 0.45 x 0.4 inches (6.35 x 11.43 x 10.16 mm); Weight: 0.04 lbs (0.02 kg) Compatible with GRACO airless spray guns and related equipment (e.g., Texture Airless Spray Gun, XHF Spray Gun) Compact and lightweight for easy integration Precision-engineered for reliable spring tension adjustment Designed for durability in demanding industrial environments Applications:Used in GRACO airless spray guns and similar equipment to ensure consistent spring tension and reliable trigger/valve operation. Suitable for industrial, commercial, and agricultural applications where precise spray control is required. Installation Notes: Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of your spray equipment. Non-genuine parts may compromise safety and equipment longevity. Refer to the specific GRACO equipment manual for detailed installation instructions Ensure the equipment is depressurized and disconnected from power before installation Handle small components carefully to avoid loss or damage Use appropriate tools for installation and adjustment Regularly inspect the spring adjuster for wear or damage Replace the part if signs of fatigue or deformation are observed Keep the component clean and free from debris