4326-366Y MINNESOTA RUBBER QUAD RING

The HQ4326 is an AS568-326 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 1.6 in (40.64 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.02 in (51.31 mm). This quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. The compound resists propane and butane, hydraulic fluids, and water. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with automotive brake fluid or ozone and direct sunlight. The profile itself contributes resistance to the spiral twisting that defeats round-section rings and a parting line located away from the sealing surface.

Common environments for this compound include agricultural equipment, general industrial maintenance, and construction equipment.

This item is sold individually under part number HQ4326. Nominal inside diameter is listed as 1 5/8 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.