Ordered as VB75412, this is an AS568-412 brown Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 2.85 in (72.39 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 3.4 in (86.36 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
The compound resists aggressive chemicals, chlorinated solvents, and aromatic hydrocarbons. Viton® (FKM) delivers 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 should not be specified for service in low-molecular-weight organic acids or ketones and esters.
Common environments for this compound include high-temperature process equipment, aerospace, and chemical processing.
Reference part number VB75412 when ordering; the item is sold individually. Nominal inside diameter is listed as 2 7/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description -412 BROWN FKM 75D O-RING
uf_description2 0.275" (6.99MM) CS X 2.850" (72.39MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 2.85 inch (72.39 mm)
Actual_OD 3.4 inch (86.36 mm)
ProductCode Description O-Rings - Bulk - Commodity