This o-ring is supplied in AS568-444 black Viton® (FKM) 75 Shore A supplied with an inside diameter of 7.725 in (196.22 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 8.275 in (210.19 mm), catalogued under part number V75444. It remains the most cost-effective sealing element available for pressurized assemblies.
Viton® (FKM) is specified here for industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. The material holds up against engine and transmission fluids, aromatic hydrocarbons, and chlorinated solvents. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where amines or hot water and steam are present.
You will find this material specified across aerospace, semiconductor equipment, and high-temperature process equipment.
This item is sold individually under part number V75444. Unit weight is approximately 45.59 g. Check the compound against your process media, pressure and temperature before committing to a design. 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 -444 BLACK FKM 75D O-RING
uf_description2 0.275" (6.99MM) CS X 7.725" (196.21MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 7.725 inch (196.22 mm)
Actual_OD 8.275 inch (210.19 mm)
ProductCode Description O-Rings - Bulk - Commodity