Ordered as H3X242, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 242 mm (9.528 in), a cross section of 3 mm (0.118 in), and an outside diameter of 248 mm (9.76 in). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.
As a material, Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, strong abrasion and tear resistance. This material stands up to many alcohols, greases and lubricants, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in polar solvents or strong acids.
Maintenance and OEM teams specify it across general industrial maintenance, automotive, and construction equipment.
Reference part number H3X242 when ordering; the item is sold individually. Unit weight is approximately 6.971 g. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description 3MM CS X 242MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 248 mm (9.76 inch)
Actual_CS 3 mm (0.118 inch)
Actual_ID 242 mm (9.528 inch)
ProductCode Description O-Rings - Metric - Commodity