5.7MM CS X 54.6MM ID BLACK FKM 75D

Ordered as V5.7X54.6, this is a black Viton® (FKM) 75 Shore A O-Ring supplied with an inside diameter of 54.6 mm (2.15 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 66 mm (2.6 in). The o-ring compresses into its gland to block fluid or gas migration across a joint. The catalog record notes: Metric O-RING, JIS P55.

It resists petroleum oils and fuels, engine and transmission fluids, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) offers excellent resistance to compression set and permeation, outstanding high-temperature capability. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It should not be specified for service in low-molecular-weight organic acids or hot water and steam.

Maintenance and OEM teams specify it across high-temperature process equipment, aerospace, and automotive fuel systems.

Reference part number V5.7X54.6 when ordering; the item is sold individually. Unit weight is approximately 8.7735 g. Review your operating media and conditions against this specification before installation.