-355 BLACK FKM 75D O-RING

Part number V70355 is an AS568-355 black Viton® (FKM) 75 Shore A O-Ring supplied with an inside diameter of 5.225 in (132.72 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.645 in (143.38 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Viton® (FKM) is known for the industry benchmark where nitrile reaches its thermal limit and very low compression set at elevated temperature. This material stands up to chlorinated solvents, aromatic hydrocarbons, and many acids. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). Applications involving low-molecular-weight organic acids or ketones and esters call for a different compound.

Maintenance and OEM teams specify it across chemical processing, aerospace, and oil and gas.

Stocked as V70355 and sold individually. Unit weight is approximately 17.3 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.