Q-233 BUNA 70 Q RING

QH70233 is an AS568-233 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 2.859 in (72.62 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.137 in (79.68 mm). In service, this quad-ring provides a dual sealing band on each contact face for improved reliability.

The material holds up against many alcohols, greases and lubricants, and petroleum-based oils. Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with polar solvents or automotive brake fluid. The profile itself contributes two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

Typical settings include hydraulic and pneumatic systems, agricultural equipment, and construction equipment.

This item is sold individually under part number QH70233. Unit weight is approximately 2.965 g and nominal inside diameter is listed as 2 7/8 inch. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.