Description

The D3ORN9111CO is a specialized replacement O-ring designed for the demanding internal environments of Daystate PCP airguns. Identified as ‘Part No. 8’ on standard Air Ranger and Air Wolf exploded diagrams, this component is crafted by Barnwell from premium Urethane with a 90-durometer (N90) hardness rating. Unlike standard rubber O-rings, this high-density urethane seal is resistant to the high-velocity air friction and extreme pressures found in the rifle’s regulator or valve assembly. This part is ‘Use Only’ mandated, meaning substitution with a standard N70 or nitrile O-ring will result in premature failure and potential damage to the rifle’s internal sealing surfaces. It is recommended to apply a light coating of Molykote 111 or similar high-grade silicone grease during installation to ensure a long-lasting, airtight seal.