-249 BLUE FKM 75D O-RING

Ordered as V75MD249, this is an AS568-249 blue Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 4.859 in (123.42 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.137 in (130.48 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Viton® (FKM) offers the industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. Expect good resistance to many acids, aromatic hydrocarbons, and engine and transmission fluids. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Applications involving hot water and steam or low-molecular-weight organic acids call for a different compound.

This item meets FDA requirements for food contact, carries NSF listing, and is metal detectable for HACCP and foreign-body control programs. You will find this material specified across chemical processing, automotive fuel systems, and high-temperature process equipment.

Stocked as V75MD249 and sold individually. Nominal inside diameter is listed as 4 7/8 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.