Viton 75-425-Black-Pk2

This o-ring is supplied in AS568-425 black Viton® (FKM) 70 Shore A measuring an inside diameter of 4.475 in (113.67 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.025 in (127.64 mm), catalogued under part number SB-V70425-2. It creates a positive seal at flange, piston and rod interfaces without added hardware. The catalog record notes: 0.275CSX4.475"IDX5.025"OD.

It resists chlorinated solvents, many acids, and aggressive chemicals. Viton® (FKM) is widely chosen for long service life in hot, chemically aggressive environments and very low compression set at elevated temperature. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where hot water and steam or amines are present.

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

Reference part number SB-V70425-2 when ordering; the item is sold by the bag. Nominal inside diameter is listed as 4 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.