APG stocks the H90M3.5X27.7, a black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 27.7 mm (1.091 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 34.7 mm (1.37 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope. Supplementary detail from the product record: Metric O-RING, JIS P28.
As a material, Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, reliable performance in both static and dynamic service. The compound resists many alcohols, greases and lubricants, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or ozone and direct sunlight call for a different compound.
You will find this material specified across fluid power, construction equipment, and hydraulic and pneumatic systems.
H90M3.5X27.7 ships individually. Unit weight is approximately 1.297 g. Check the compound against your process media, pressure and temperature before committing to a design.
Description 3.5MM CS X 27.7MM ID BLACK BUNA 90D
Actual Outside Diameter 34.7 mm (1.37 inch)
Actual Cross Section 3.5 mm (0.138 inch)
Actual Inside Diameter 27.7 mm (1.091 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity