Q-237 BUNA 70 Q RING

Part number QH70237 is an AS568-237 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring measuring an inside diameter of 3.359 in (85.32 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.637 in (92.38 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

This material stands up to water, greases and lubricants, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

Typical settings include fluid power, general industrial maintenance, and construction equipment.

Stocked as QH70237 and sold individually. Unit weight is approximately 3.1508 g and nominal inside diameter is listed as 3 3/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.