Q-173 FLUOROELASTOMER 75 Q RING

Ordered as QV70173, this is an AS568-173 black Viton® (FKM) 75 Shore A Quad-Ring with an inside diameter of 8.487 in (215.57 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 8.693 in (220.8 mm). The quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

The material holds up against many acids, petroleum oils and fuels, and chlorinated solvents. Viton® (FKM) delivers the industry benchmark where nitrile reaches its thermal limit and very low compression set at elevated temperature. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with low-molecular-weight organic acids or ketones and esters. The profile itself contributes two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

Typical settings include aerospace, oil and gas, and automotive fuel systems.

Reference part number QV70173 when ordering; the item is sold individually. Nominal inside diameter is listed as 8 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.