Ordered as H2X144.5, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 144.5 mm (5.689 in), a cross section of 2 mm (0.079 in), and an outside diameter of 148.5 mm (5.85 in). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Source specification: Metric O-RING, JIS S145.
The material holds up against many alcohols, greases and lubricants, and propane and butane. Buna-N (Nitrile) delivers low compression set under sustained load and an economical choice for high-volume maintenance programs. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.
Maintenance and OEM teams specify it across construction equipment, agricultural equipment, and hydraulic and pneumatic systems.
Reference part number H2X144.5 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
Description 2MM CS X 144.5MM ID BLACK BUNA 70D
Actual Outside Diameter 148.5 mm (5.85 inch)
Actual Cross Section 2 mm (0.079 inch)
Actual Inside Diameter 144.5 mm (5.689 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity