*4373-366Y MINNESOTA RUBBER QUAD RING

Ordered as HQ4373, this is an AS568-373 black Buna-N (Nitrile) 70 Shore A Quad-Ring supplied with an inside diameter of 8.975 in (227.97 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.395 in (238.63 mm). The quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The compound resists water, many alcohols, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or ketones. The profile itself contributes a parting line located away from the sealing surface and resistance to the spiral twisting that defeats round-section rings.

Typical settings include automotive, hydraulic and pneumatic systems, and fluid power.

HQ4373 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.