Ordered as V90274, this is an AS568-274 black Viton® (FKM) 90 Shore A O-Ring measuring an inside diameter of 9.984 in (253.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 10.262 in (260.65 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
The compound resists petroleum oils and fuels, engine and transmission fluids, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) is specified for excellent resistance to compression set and permeation, long service life in hot, chemically aggressive environments. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where low-molecular-weight organic acids or hot water and steam are present.
Typical settings include aerospace, high-temperature process equipment, and oil and gas.
Reference part number V90274 when ordering; the item is sold individually. Unit weight is approximately 14.561 g. Review your operating media and conditions against this specification before installation.
Description -274 BLACK FKM 90D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 9.984 inch (253.59 mm)
Actual Outside Diameter 10.262 inch (260.65 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity