APG stocks the V70245, an AS568-245 black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 4.359 in (110.72 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.637 in (117.78 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Viton® (FKM) is known for excellent resistance to compression set and permeation, the industry benchmark where nitrile reaches its thermal limit. Expect good resistance to many acids, petroleum oils and fuels, and aromatic hydrocarbons. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. Exposure to low-molecular-weight organic acids or ketones and esters will shorten service life.
It sees regular use in oil and gas, chemical processing, and high-temperature process equipment.
Order part number V70245, sold individually. Unit weight is approximately 6.504 g and nominal inside diameter is listed as 4 3/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description -245 BLACK FKM 75D O-RING
uf_description2 0.139" (3.53MM) CS X 4.359" (110.72MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 4.359 inch (110.72 mm)
Actual_OD 4.637 inch (117.78 mm)
ProductCode Description O-Rings - Bulk - Commodity