-240 BLACK BUNA 70D O-RING

Ordered as H70240, this is an AS568-240 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 3.734 in (94.84 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.012 in (101.9 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, strong abrasion and tear resistance. Expect good resistance to propane and butane, petroleum-based oils, and water. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with strong acids or polar solvents.

Maintenance and OEM teams specify it across fluid power, agricultural equipment, and automotive.

Reference part number H70240 when ordering; the item is sold individually. Unit weight is approximately 3.709 g and nominal inside diameter is listed as 3 3/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.