Q-367 BUNA 70 Q RING

QH70367 is an AS568-367 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 7.475 in (189.87 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 7.895 in (200.53 mm). In service, this quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

This material stands up to water, greases and lubricants, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and low compression set under sustained load. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to strong acids or automotive brake fluid will shorten service life. 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 fluid power, automotive, and general industrial maintenance.

Order part number QH70367, sold individually. Unit weight is approximately 16.25 g and nominal inside diameter is listed as 7 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.