APG stocks the V3.5X31.2, a black Viton® (FKM) 75 Shore A O-Ring supplied with an inside diameter of 31.2 mm (1.228 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 38.2 mm (1.5 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Additional detail on this item: Metric O-RING, JIS P31.5.
Expect good resistance to many acids, engine and transmission fluids, and aromatic hydrocarbons. Viton® (FKM) is valued for excellent resistance to compression set and permeation, outstanding high-temperature capability. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with ketones and esters or low-molecular-weight organic acids.
Common environments for this compound include chemical processing, oil and gas, and automotive fuel systems.
Reference part number V3.5X31.2 when ordering; the item is sold individually. Unit weight is approximately 2.0026 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 3.5MM CS X 31.2MM ID BLACK FKM 75D
Actual Outside Diameter 38.2 mm (1.5 inch)
Actual Cross Section 3.5 mm (0.138 inch)
Actual Inside Diameter 31.2 mm (1.228 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity