Q-019 BUNA 70 Q RING

APG stocks the QH70019, an AS568-019 black Buna-N (Nitrile) 70 Shore A Quad-Ring built to an inside diameter of 0.801 in (20.35 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.941 in (23.9 mm). A quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

It resists water, greases and lubricants, and petroleum-based oils. Buna-N (Nitrile) is specified for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). The profile itself contributes two sealing bands per contact face rather than one and lower compressive load required to achieve a seal.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, agricultural equipment, and construction equipment.

QH70019 ships individually. Unit weight is approximately 0.219 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.