This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 109.6 mm (4.315 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 121 mm (4.76 in), catalogued under part number H5.7X109.6. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. This item is further identified as Metric O-RING, JIS P110.
It resists greases and lubricants, many alcohols, and water. That behavior comes from the compound itself: Buna-N (Nitrile) offers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).
It sees regular use in fluid power, agricultural equipment, and automotive.
H5.7X109.6 ships individually. Unit weight is approximately 11.24 g. Review your operating media and conditions against this specification before installation.
Description 5.7MM CS X 109.6MM ID BLACK BUNA 70D
Actual Outside Diameter 121 mm (4.76 inch)
Actual Cross Section 5.7 mm (0.224 inch)
Actual Inside Diameter 109.6 mm (4.315 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity