3.5MM CS X 8MM ID BLACK FKM 75D

V3.5X8 is a black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 8 mm (0.315 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 15 mm (0.59 in). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The compound resists aggressive chemicals, petroleum oils and fuels, and aromatic hydrocarbons. That behavior comes from the compound itself: Viton® (FKM) is known for outstanding high-temperature capability, excellent resistance to compression set and permeation. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Applications involving ketones and esters or low-molecular-weight organic acids call for a different compound.

Typical settings include oil and gas, high-temperature process equipment, and automotive fuel systems.

Reference part number V3.5X8 when ordering; the item is sold individually. Unit weight is approximately 0.6361 g. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.