This o-ring is supplied in AS568-470 brown Viton® (FKM) 75 Shore A with an inside diameter of 20.955 in (532.26 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 21.505 in (546.23 mm), catalogued under part number VB75470. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.
It resists petroleum oils and fuels, aggressive chemicals, and many acids. That behavior comes from the compound itself: Viton® (FKM) is widely chosen for the industry benchmark where nitrile reaches its thermal limit, excellent resistance to compression set and permeation. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Exposure to ketones and esters or hot water and steam will shorten service life.
You will find this material specified across aerospace, high-temperature process equipment, and automotive fuel systems.
This item is sold individually under part number VB75470. Unit weight is approximately 132.24 g. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description -470 BROWN FKM 75D O-RING
uf_description2 0.275" (6.99MM) CS X 20.955" (532.26MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 20.955 inch (532.26 mm)
Actual_OD 21.505 inch (546.23 mm)
ProductCode Description O-Rings - Bulk - Commodity