-427 BROWN FKM 75D O-RING

APG stocks the VB75427, an AS568-427 brown Viton® (FKM) 75 Shore A O-Ring supplied with an inside diameter of 4.725 in (120.02 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.275 in (133.99 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to many acids, aromatic hydrocarbons, and petroleum oils and fuels. That behavior comes from the compound itself: Viton® (FKM) is widely chosen for excellent resistance to compression set and permeation, very low compression set at elevated temperature. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with amines or ketones and esters.

It sees regular use in chemical processing, aerospace, and oil and gas.

Order part number VB75427, sold individually. Unit weight is approximately 31.382 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.