-261 BROWN FKM 90D O-RING

APG stocks the VB90261, an AS568-261 brown Viton® (FKM) 90 Shore A O-Ring supplied with an inside diameter of 6.734 in (171.04 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 7.012 in (178.1 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

This material stands up to engine and transmission fluids, chlorinated solvents, and aromatic hydrocarbons. That behavior comes from the compound itself: Viton® (FKM) is known for very low compression set at elevated temperature and outstanding high-temperature capability. Published continuous service range is -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.

Common environments for this compound include oil and gas, aerospace, and chemical processing.

VB90261 ships individually. Unit weight is approximately 12.232 g. 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.