This o-ring is supplied in AS568-141 black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 2.3 in (58.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.506 in (63.65 mm), catalogued under part number H70141. It creates a positive seal at flange, piston and rod interfaces without added hardware.
The material holds up against hydraulic fluids, propane and butane, and greases and lubricants. Buna-N (Nitrile) is known for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. 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 strong acids.
Typical settings include general industrial maintenance, hydraulic and pneumatic systems, and agricultural equipment.
This item is sold individually under part number H70141. Unit weight is approximately 1.2626 g and nominal inside diameter is listed as 2 5/16 inch. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description -141 BLACK BUNA 70D O-RING
uf_description2 0.103" (2.62MM) CS X 2.300" (58.42MM) ID
Actual_CS 0.103 inch (2.62 mm)
Actual_ID 2.3 inch (58.42 mm)
Actual_OD 2.506 inch (63.65 mm)
ProductCode Description O-Rings - Bulk - Commodity