Ordered as H4X260, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 260 mm (10.236 in), a cross section of 4 mm (0.157 in), and an outside diameter of 268 mm (10.55 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.
Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. This material stands up to greases and lubricants, hydraulic fluids, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or ozone and direct sunlight.
Common environments for this compound include hydraulic and pneumatic systems, construction equipment, and general industrial maintenance.
Reference part number H4X260 when ordering; the item is sold individually. Unit weight is approximately 12.549 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.
description 4MM CS X 260MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 268 mm (10.55 inch)
Actual_CS 4 mm (0.157 inch)
Actual_ID 260 mm (10.236 inch)
ProductCode Description O-Rings - Metric - Commodity