Buna 70-4mmCSx38mmID-Black-Pk25

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 38 mm (1.496 in), a cross section of 4 mm (0.157 in), and an outside diameter of 46 mm (1.81 in), catalogued under part number SB-H4X38-25. It provides a reliable static or dynamic seal by deforming into its gland under assembly load. Supplementary detail from the product record: 38MMIDX4MMCS.

As a material, Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Expect good resistance to propane and butane, hydraulic fluids, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or strong acids.

Typical settings include construction equipment, hydraulic and pneumatic systems, and general industrial maintenance.

Reference part number SB-H4X38-25 when ordering; the item is sold by the bag. Check the compound against your process media, pressure and temperature before committing to a design.