3.5MM CS X 47.7MM ID BLACK BUNA 70D

H3.5X47.7 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 47.7 mm (1.878 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 54.7 mm (2.15 in). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope. Additional detail on this item: Metric O-RING, JIS P48.

Expect good resistance to water, many alcohols, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for strong abrasion and tear resistance, low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or automotive brake fluid are present.

Common environments for this compound include general industrial maintenance, fluid power, and agricultural equipment.

Reference part number H3.5X47.7 when ordering; the item is sold individually. Unit weight is approximately 1.9289 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.