This o-ring is supplied in black Buna-N (Nitrile) 90 Shore A built to an inside diameter of 144.4 mm (5.685 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 150.6 mm (5.93 in), catalogued under part number H90M3.1X144.4. It compresses into its gland to block fluid or gas migration across a joint. This item is further identified as Metric O-RING, JIS G145.
As a material, Buna-N (Nitrile) is widely chosen for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. It resists water, hydraulic fluids, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).
Common environments for this compound include construction equipment, automotive, and fluid power.
Order part number H90M3.1X144.4, sold individually. Unit weight is approximately 4.8831 g. Check the compound against your process media, pressure and temperature before committing to a design.
Description 3.1MM CS X 144.4MM ID BLACK BUNA 90D
Actual Outside Diameter 150.6 mm (5.93 inch)
Actual Cross Section 3.1 mm (0.122 inch)
Actual Inside Diameter 144.4 mm (5.685 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity