Ordered as H70918, this is an AS568-918 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.355 in (34.42 mm), a cross section of 0.116 in (2.95 mm), and an outside diameter of 1.587 in (40.31 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
The material holds up against hydraulic fluids, propane and butane, and water. Buna-N (Nitrile) is valued for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).
Typical settings include agricultural equipment, fluid power, and general industrial maintenance.
H70918 ships individually. Unit weight is approximately 0.974 g and nominal inside diameter is listed as 1 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 -918 BLACK BUNA 70D O-RING
uf_description2 0.116" (2.95MM) CS X 1.355" (34.42MM) ID
Actual_CS 0.116 inch (2.95 mm)
Actual_ID 1.355 inch (34.42 mm)
Actual_OD 1.587 inch (40.31 mm)
ProductCode Description O-Rings - Bulk - Commodity