Ordered as H3.5X61, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 61 mm (2.402 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 68 mm (2.68 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
This material stands up to water, propane and butane, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).
Typical settings include fluid power, agricultural equipment, and construction equipment.
This item is sold individually under part number H3.5X61. Unit weight is approximately 2.388 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 3.5MM CS X 61MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 68 mm (2.68 inch)
Actual_CS 3.5 mm (0.138 inch)
Actual_ID 61 mm (2.402 inch)
ProductCode Description O-Rings - Metric - Commodity