Buna 70-049-Black-Pk2

SB-H70049-2 is an AS568-049 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 4.989 in (126.72 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 5.129 in (130.28 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope. Supplementary detail from the product record: 0.070CSX4.989"IDX5.129"OD.

Buna-N (Nitrile) is specified for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. This material stands up to water, hydraulic fluids, and petroleum-based oils. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

Common environments for this compound include fluid power, hydraulic and pneumatic systems, and general industrial maintenance.

Reference part number SB-H70049-2 when ordering; the item is sold by the bag. Nominal inside diameter is listed as 5 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.