-434 BROWN FKM 75D O-RING

Ordered as VB75434, this is an AS568-434 brown Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 5.6 in (142.24 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.15 in (156.21 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to many acids, petroleum oils and fuels, and aromatic hydrocarbons. That behavior comes from the compound itself: Viton® (FKM) is widely chosen for excellent resistance to compression set and permeation, the industry benchmark where nitrile reaches its thermal limit. 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 low-molecular-weight organic acids.

Maintenance and OEM teams specify it across high-temperature process equipment, chemical processing, and aerospace.

VB75434 ships individually. Unit weight is approximately 36.767 g and nominal inside diameter is listed as 5 5/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.