-016 BLACK BUNA 70D O-RING

The H70016 is an AS568-016 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 0.614 in (15.6 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.754 in (19.15 mm). This o-ring compresses into its gland to block fluid or gas migration across a joint.

It resists hydraulic fluids, greases and lubricants, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) offers low compression set under sustained load, reliable performance in both static and dynamic service. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where automotive brake fluid or ketones are present.

You will find this material specified across fluid power, agricultural equipment, and general industrial maintenance.

Reference part number H70016 when ordering; the item is sold individually. Unit weight is approximately 0.1659 g and nominal inside diameter is listed as 5/8 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.