Ordered as VB90042, this is an AS568-042 brown Viton® (FKM) 90 Shore A O-Ring built to an inside diameter of 3.239 in (82.27 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.379 in (85.83 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Viton® (FKM) is specified here for outstanding high-temperature capability and very low compression set at elevated temperature. It resists many acids, aromatic hydrocarbons, and petroleum oils and fuels. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It should not be specified for service in hot water and steam or amines.
Maintenance and OEM teams specify it across oil and gas, high-temperature process equipment, and chemical processing.
This item is sold individually under part number VB90042. Nominal inside diameter is listed as 3 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Description -042 BROWN FKM 90D O-RING
Actual Cross Section 0.07 inch (1.78 mm)
Actual Inside Diameter 3.239 inch (82.27 mm)
Actual Outside Diameter 3.379 inch (85.83 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity