V4.5X12 is a black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 12 mm (0.472 in), a cross section of 4.5 mm (0.177 in), and an outside diameter of 21 mm (0.83 in). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.
As a material, Viton® (FKM) delivers very low compression set at elevated temperature, excellent resistance to compression set and permeation. It resists engine and transmission fluids, aromatic hydrocarbons, and chlorinated solvents. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where hot water and steam or amines are present.
You will find this material specified across aerospace, chemical processing, and semiconductor equipment.
Reference part number V4.5X12 when ordering; the item is sold individually. Unit weight is approximately 1.516 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 4.5MM CS X 12MM ID BLACK FKM 75D
uf_description2 METRIC O-RING
Actual_OD 21 mm (0.83 inch)
Actual_CS 4.5 mm (0.177 inch)
Actual_ID 12 mm (0.472 inch)
ProductCode Description O-Rings - Metric - Commodity