Buna 70-124-Black-Pk100

This o-ring is supplied in AS568-124 black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 1.237 in (31.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.443 in (36.65 mm), catalogued under part number SB-H70124-100. It compresses into its gland to block fluid or gas migration across a joint. This item is further identified as 1.4375IDX1.25"ODX.0938"CS.

Expect good resistance to propane and butane, hydraulic fluids, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, strong abrasion and tear resistance. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in automotive brake fluid or ketones.

You will find this material specified across construction equipment, hydraulic and pneumatic systems, and fluid power.

This item is sold by the bag under part number SB-H70124-100. Nominal inside diameter is listed as 1 1/4 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.