This o-ring is supplied in black Viton® (FKM) 75 Shore A measuring an inside diameter of 49.4 mm (1.945 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 55.6 mm (2.19 in), catalogued under part number V3.1X49.4. It compresses into its gland to block fluid or gas migration across a joint. Additional detail on this item: Metric O-RING, JIS G50.
Viton® (FKM) is specified here for excellent resistance to compression set and permeation, very low compression set at elevated temperature. Expect good resistance to chlorinated solvents, aggressive chemicals, and many acids. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in low-molecular-weight organic acids or amines.
You will find this material specified across semiconductor equipment, high-temperature process equipment, and oil and gas.
Reference part number V3.1X49.4 when ordering; the item is sold individually. Unit weight is approximately 2.3055 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.
description 3.1MM CS X 49.4MM ID BLACK FKM 75D
uf_description2 METRIC O-RING, JIS G50
Actual_OD 55.6 mm (2.19 inch)
Actual_CS 3.1 mm (0.122 inch)
Actual_ID 49.4 mm (1.945 inch)
ProductCode Description O-Rings - Metric - Commodity