H90316 is an AS568-316 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 0.85 in (21.59 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.27 in (32.26 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
It resists water, many alcohols, and propane and butane. Buna-N (Nitrile) offers strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or strong acids.
Maintenance and OEM teams specify it across hydraulic and pneumatic systems, construction equipment, and fluid power.
This item is sold individually under part number H90316. Unit weight is approximately 2.6647 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 -316 BLACK BUNA 90D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 0.85 inch (21.59 mm)
Actual Outside Diameter 1.27 inch (32.26 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity