4117-366Y MINNESOTA RUBBER QUAD RING

The HQ4117 is an AS568-117 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 0.799 in (20.29 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.005 in (25.53 mm). This quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, low compression set under sustained load. The material holds up against propane and butane, hydraulic fluids, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or ketones call for a different compound. The profile itself contributes a parting line located away from the sealing surface and resistance to the spiral twisting that defeats round-section rings.

It sees regular use in general industrial maintenance, fluid power, and automotive.

HQ4117 ships individually. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.