1.2MM CS X 4MM ID BLACK FKM 75D

The V1.2X4 is a black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 4 mm (0.157 in), a cross section of 1.2 mm (0.047 in), and an outside diameter of 6.4 mm (0.25 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The material holds up against petroleum oils and fuels, many acids, and aggressive chemicals. Viton® (FKM) offers the industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. Applications involving low-molecular-weight organic acids or hot water and steam call for a different compound.

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

V1.2X4 ships individually. Unit weight is approximately 0.0336 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.