Buna 70-3mmCSx38mmID-Black-Pk25

SB-H3X38-25 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 38 mm (1.496 in), a cross section of 3 mm (0.118 in), and an outside diameter of 44 mm (1.73 in). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. The catalog record notes: 38MMIDX3MMCS.

Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The compound resists greases and lubricants, petroleum-based oils, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

You will find this material specified across agricultural equipment, fluid power, and general industrial maintenance.

Reference part number SB-H3X38-25 when ordering; the item is sold by the bag. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.