H1.78X9.52 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 9.52 mm (0.375 in), a cross section of 1.78 mm (0.07 in), and an outside diameter of 13.08 mm (0.51 in). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, low compression set under sustained load. The material holds up against petroleum-based oils, propane and butane, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where ozone and direct sunlight or ketones are present.
It sees regular use in agricultural equipment, general industrial maintenance, and hydraulic and pneumatic systems.
Stocked as H1.78X9.52 and sold individually. Unit weight is approximately 0.0002 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 1.78MM CS X 9.52MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 13.08 mm (0.51 inch)
Actual_CS 1.78 mm (0.07 inch)
Actual_ID 9.52 mm (0.375 inch)
ProductCode Description O-Rings - Metric - Commodity