Buna 70-255-Black-Pk10

Part number SB-H70255-10 is an AS568-255 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 5.609 in (142.47 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.887 in (149.53 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope. Source specification: 5.875IDX5.625"ODX.125"CS.

Buna-N (Nitrile) is specified here for low compression set under sustained load and economical choice for high-volume maintenance programs. The compound resists propane and butane, many alcohols, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

Typical settings include hydraulic and pneumatic systems, agricultural equipment, and automotive.

Reference part number SB-H70255-10 when ordering; the item is sold by the bag. Nominal inside diameter is listed as 5 5/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.