Q-382 BUNA 70 Q RING

Part number QH70382 is an AS568-382 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 12.975 in (329.57 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 13.395 in (340.23 mm). A quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

It resists hydraulic fluids, propane and butane, and petroleum-based oils. Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ozone and direct sunlight. The profile itself contributes lower compressive load required to achieve a seal and two sealing bands per contact face rather than one.

Typical settings include hydraulic and pneumatic systems, agricultural equipment, and fluid power.

Reference part number QH70382 when ordering; the item is sold individually. Nominal inside diameter is listed as 13 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.