2.5MM CS X 21.5MM ID BLACK BUNA 70D

The H2.5X21.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 21.5 mm (0.846 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 26.5 mm (1.04 in). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Expect good resistance to many alcohols, greases and lubricants, and petroleum-based oils. Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or strong acids call for a different compound.

Typical settings include construction equipment, automotive, and fluid power.

Stocked as H2.5X21.5 and sold individually. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.