1MM CS X 20MM ID BLACK BUNA 90D

The H90M1X20 is a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 20 mm (0.787 in), a cross section of 1 mm (0.039 in), and an outside diameter of 22 mm (0.87 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, economical choice for high-volume maintenance programs. The material holds up against greases and lubricants, hydraulic fluids, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or automotive brake fluid.

Maintenance and OEM teams specify it across fluid power, agricultural equipment, and construction equipment.

Order part number H90M1X20, sold individually. Unit weight is approximately 0.073 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.