-368 BLACK BUNA 90D O-RING

APG stocks the H90368, an AS568-368 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 7.725 in (196.22 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 8.145 in (206.88 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

This material stands up to propane and butane, water, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ketones or ozone and direct sunlight.

Maintenance and OEM teams specify it across agricultural equipment, hydraulic and pneumatic systems, and automotive.

Reference part number H90368 when ordering; the item is sold individually. Unit weight is approximately 19.832 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.