This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 32.5 mm (1.28 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 39.6 mm (1.56 in), catalogued under part number H3.55X32.5. It creates a positive seal at flange, piston and rod interfaces without added hardware.
The compound resists petroleum-based oils, water, and greases and lubricants. Buna-N (Nitrile) offers strong abrasion and tear resistance, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to polar solvents or ketones will shorten service life.
You will find this material specified across construction equipment, hydraulic and pneumatic systems, and automotive.
Stocked as H3.55X32.5 and sold individually. Unit weight is approximately 1.3806 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.
description 3.55MM CS X 32.5MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 39.6 mm (1.56 inch)
Actual_CS 3.55 mm (0.14 inch)
Actual_ID 32.5 mm (1.28 inch)
ProductCode Description O-Rings - Metric - Commodity