Ordered as H3.53X68.26, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 68.26 mm (2.687 in), a cross section of 3.53 mm (0.139 in), and an outside diameter of 75.32 mm (2.97 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.
Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, economical choice for high-volume maintenance programs. The compound resists propane and butane, greases and lubricants, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or polar solvents.
Typical settings include automotive, general industrial maintenance, and hydraulic and pneumatic systems.
H3.53X68.26 ships individually. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 3.53MM CS X 68.26MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 75.32 mm (2.97 inch)
Actual_CS 3.53 mm (0.139 inch)
Actual_ID 68.26 mm (2.687 inch)
ProductCode Description O-Rings - Metric - Commodity