-178 BLACK FKM 75D O-RING

Part number V70178 is an AS568-178 black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 9.737 in (247.32 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 9.943 in (252.55 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Viton® (FKM) delivers very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. The compound resists aggressive chemicals, engine and transmission fluids, and petroleum oils and fuels. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Exposure to low-molecular-weight organic acids or hot water and steam will shorten service life.

Typical settings include chemical processing, semiconductor equipment, and aerospace.

Reference part number V70178 when ordering; the item is sold individually. Unit weight is approximately 7.579 g and nominal inside diameter is listed as 9 3/4 inch. 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.