The H90112 is an AS568-112 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 0.487 in (12.37 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.693 in (17.6 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.
As a material, Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. This material stands up to many alcohols, petroleum-based oils, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or ozone and direct sunlight.
It sees regular use in hydraulic and pneumatic systems, fluid power, and automotive.
Stocked as H90112 and sold individually. Unit weight is approximately 0.33 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Description -112 BLACK BUNA 90D O-RING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 0.487 inch (12.37 mm)
Actual Outside Diameter 0.693 inch (17.6 )
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity