Part number QH70382 is an AS568-382 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring measuring an inside diameter of 12.975 in (329.57 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 13.395 in (340.23 mm). A quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.
It resists hydraulic fluids, propane and butane, and petroleum-based oils. Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ozone and direct sunlight.
Typical settings include hydraulic and pneumatic systems, agricultural equipment, and fluid power.
Reference part number QH70382 when ordering; the item is sold individually. Nominal inside diameter is listed as 13 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description Q-382 BUNA 70 Q RING
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 12.975 inch (329.57 mm)
Actual_OD 13.395 inch (340.23 mm)
ProductCode Description O-Rings - Square/Quad - Commodity