H70034 is an AS568-034 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 2.114 in (53.7 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.254 in (57.25 mm). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Expect good resistance to propane and butane, many alcohols, and water. That behavior comes from the compound itself: Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or ketones.
Typical settings include agricultural equipment, hydraulic and pneumatic systems, and general industrial maintenance.
H70034 ships individually. Unit weight is approximately 0.0006 g and nominal inside diameter is listed as 2 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description -034 BLACK BUNA 70D O-RING
uf_description2 0.070" (1.78MM) CS X 2.114" (53.7MM) ID
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 2.114 inch (53.7 mm)
Actual_OD 2.254 inch (57.25 mm)
ProductCode Description O-Rings - Bulk - Commodity