4125-366Y MINNESOTA RUBBER QUAD RING

Part number HQ4125 is an AS568-125 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 1.299 in (32.99 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.505 in (38.23 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Buna-N (Nitrile) offers strong abrasion and tear resistance, reliable performance in both static and dynamic service. The compound resists water, propane and butane, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or ozone and direct sunlight. The profile itself contributes two sealing bands per contact face rather than one and a parting line located away from the sealing surface.

Typical settings include hydraulic and pneumatic systems, general industrial maintenance, and automotive.

HQ4125 ships individually. Nominal inside diameter is listed as 1 5/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.