This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 38.5 mm (1.516 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 43.5 mm (1.71 in), catalogued under part number H2.5X38.5. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.
As a material, Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The material holds up against propane and butane, hydraulic fluids, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).
It sees regular use in automotive, fluid power, and construction equipment.
Reference part number H2.5X38.5 when ordering; the item is sold individually. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 2.5MM CS X 38.5MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 43.5 mm (1.71 inch)
Actual_CS 2.5 mm (0.098 inch)
Actual_ID 38.5 mm (1.516 inch)
ProductCode Description O-Rings - Metric - Commodity