The Gast AP513 Molded O-Ring at Kinequip is a precision-sealed component designed for use in Gast DOA series diaphragm pumps. This molded O-ring ensures a tight seal between the head and body of the pump, helping maintain vacuum integrity and prevent air leakage during operation.
Made from high-quality elastomeric material, the AP513 resists wear, deformation, and chemical exposure, making it ideal for long-term use in medical, laboratory, and industrial environments. It plays a critical role in maintaining pump efficiency and is often replaced during routine maintenance or repair.
Installation is straightforward, and the O-ring fits securely into its designated groove without requiring adhesives or special tools. It is compatible with OEM specifications and is included in several Gast repair kits for diaphragm pumps.
Quick Product Highlights
- Molded O-ring for Gast DOA diaphragm pumps
- Ensures airtight seal between pump head and body
- Durable elastomeric material resists wear and chemicals
- Easy to install without adhesives
- OEM-compatible for reliable performance
Get your Gast AP513 Molded O-Ring at Kinequip today.





