-157 BROWN FKM 75D O-RING

Part number VB75157 is an AS568-157 brown Viton® (FKM) 75 Shore A O-Ring built to an inside diameter of 4.487 in (113.97 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.693 in (119.2 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Viton® (FKM) delivers outstanding high-temperature capability, excellent resistance to compression set and permeation. It resists aromatic hydrocarbons, many acids, and petroleum oils and fuels. 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.

You will find this material specified across aerospace, automotive fuel systems, and oil and gas.

This item is sold individually under part number VB75157. Unit weight is approximately 4.0499 g and nominal inside diameter is listed as 4 1/2 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.