This o-ring is supplied in AS568-156 black Viton® (FKM) 70 Shore A built to an inside diameter of 4.237 in (107.62 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.443 in (112.85 mm), catalogued under part number SB-V70156-2. It remains the most cost-effective sealing element available for pressurized assemblies. The catalog record notes: 0.103CSX4.237"IDX4.443"OD.
Viton® (FKM) offers very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. This material stands up to many acids, petroleum oils and fuels, and aggressive chemicals. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in amines or ketones and esters.
You will find this material specified across oil and gas, automotive fuel systems, and chemical processing.
This item is sold by the bag under part number SB-V70156-2. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description Viton 75-156-Black-Pk2
uf_description2 0.103"CSX4.237"IDX4.443"OD
Actual_CS 0.103 inch (2.62 mm)
Actual_ID 4.237 inch (107.62 mm)
Actual_OD 4.443 inch (112.85 mm)
ProductCode Description O-Rings - Bagged - Commodity