-372 BROWN FKM 75D O-RING

Ordered as VB75372, this is an AS568-372 brown Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 8.725 in (221.62 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.145 in (232.28 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists petroleum oils and fuels, engine and transmission fluids, and many acids. That behavior comes from the compound itself: Viton® (FKM) is widely chosen for outstanding high-temperature capability and long service life in hot, chemically aggressive environments. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Exposure to ketones and esters or low-molecular-weight organic acids will shorten service life.

Maintenance and OEM teams specify it across semiconductor equipment, aerospace, and automotive fuel systems.

This item is sold individually under part number VB75372. Unit weight is approximately 31.999 g and nominal inside diameter is listed as 8 3/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.