APG stocks the VB90235, an AS568-235 brown Viton® (FKM) 90 Shore A O-Ring built to an inside diameter of 3.109 in (78.97 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.387 in (86.03 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.
Expect good resistance to aggressive chemicals, many acids, and engine and transmission fluids. That behavior comes from the compound itself: Viton® (FKM) is specified for 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).
You will find this material specified across automotive fuel systems, aerospace, and chemical processing.
Reference part number VB90235 when ordering; the item is sold individually. Unit weight is approximately 5.7132 g and nominal inside diameter is listed as 3 1/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description -235 BROWN FKM 90D O-RING
uf_description2 0.139" (3.53MM) CS X 3.109" (78.97MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 3.109 inch (78.97 mm)
Actual_OD 3.387 inch (86.03 mm)
ProductCode Description O-Rings - Bulk - Commodity