APG stocks the V2.5X78, a black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 78 mm (3.071 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 83 mm (3.27 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.
As a material, Viton® (FKM) offers excellent resistance to compression set and permeation, the industry benchmark where nitrile reaches its thermal limit. The compound resists aggressive chemicals, chlorinated solvents, and many acids. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Verify compatibility before use with ketones and esters or hot water and steam.
You will find this material specified across chemical processing, aerospace, and semiconductor equipment.
Order part number V2.5X78, sold individually. Unit weight is approximately 2.325 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description 2.5MM CS X 78MM ID BLACK FKM 75D
Actual Outside Diameter 83 mm (3.27 inch)
Actual Cross Section 2.5 mm (0.098 inch)
Actual Inside Diameter 78 mm (3.071 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity