-021 WHITE BUNA 70D FDA O-RING

This o-ring is supplied in AS568-021 white Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 0.926 in (23.52 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.066 in (27.08 mm), catalogued under part number H70FDA021. It delivers dependable bidirectional sealing in a compact groove envelope.

It resists petroleum-based oils, greases and lubricants, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is known for low compression set under sustained load, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to ozone and direct sunlight or strong acids will shorten service life.

This o-ring meets FDA requirements for food contact under 21 CFR 177.2600. It sees regular use in fluid power, agricultural equipment, and construction equipment.

This item is sold individually under part number H70FDA021. Unit weight is approximately 0.251 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.