Ordered as V90018, this is an AS568-018 black Viton® (FKM) 90 Shore A O-Ring with an inside diameter of 0.739 in (18.77 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.879 in (22.33 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.
This material stands up to engine and transmission fluids, aromatic hydrocarbons, and petroleum oils and fuels. That behavior comes from the compound itself: Viton® (FKM) is known for excellent resistance to compression set and permeation, long service life in hot, chemically aggressive environments. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where amines or hot water and steam are present.
It sees regular use in semiconductor equipment, oil and gas, and automotive fuel systems.
This item is sold individually under part number V90018. Unit weight is approximately 0.3025 g. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description -018 BLACK FKM 90D O-RING
uf_description2 0.070" (1.78MM) CS X 0.739" (18.77MM) ID
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 0.739 inch (18.77 mm)
Actual_OD 0.879 inch (22.33 mm)
ProductCode Description O-Rings - Bulk - Commodity