-345 BLACK CHEMOURS VITON 75D O-RING

Ordered as VITON75345, this is an AS568-345 black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 3.975 in (100.97 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.395 in (111.63 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Expect good resistance to many acids, aggressive chemicals, and aromatic hydrocarbons. Viton® (FKM) is known for very low compression set at elevated temperature 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). It is not the right choice where low-molecular-weight organic acids or ketones and esters are present.

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

Order part number VITON75345, sold individually. Unit weight is approximately 13.801 g and nominal inside diameter is listed as 4 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.