The GRACO 867366 is an O-ring, specifically the O-RING 2-033 VT. It is a sealing component designed for use in GRACO equipment to prevent leaks and maintain system integrity. The material is not specified in available sources. Key Features: O-ring 2-033 VT Applications:Used as a sealing element in GRACO fluid handling and lubrication equipment to prevent leaks and maintain pressure integrity. Installation Notes: Using genuine GRACO O-rings ensures proper fit, seal integrity, and equipment reliability. Ensure surfaces are clean and free of debris before installation. Inspect O-ring for damage prior to use. Lubricate if recommended by the equipment manual. Regularly inspect O-rings for wear or damage. Replace as part of routine maintenance to prevent leaks and equipment failure.