2MM CS X 21.9MM ID BLACK FKM 75D

Ordered as V2X21.9, this is a black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 21.9 mm (0.862 in), a cross section of 2 mm (0.079 in), and an outside diameter of 25.9 mm (1.02 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. This item is further identified as Metric O-RING, JIS S22.4.

It resists engine and transmission fluids, chlorinated solvents, and aromatic hydrocarbons. That behavior comes from the compound itself: Viton® (FKM) is known for outstanding high-temperature capability and long service life in hot, chemically aggressive environments. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. It should not be specified for service in ketones and esters or hot water and steam.

Maintenance and OEM teams specify it across automotive fuel systems, chemical processing, and semiconductor equipment.

V2X21.9 ships individually. Unit weight is approximately 0.4313 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.