Part number H50147 is an AS568-147 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 2.675 in (67.95 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.881 in (73.18 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.
As a material, Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, low compression set under sustained load. The compound resists petroleum-based oils, propane and butane, and greases and lubricants. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ketones or strong acids.
Maintenance and OEM teams specify it across hydraulic and pneumatic systems, fluid power, and automotive.
This item is sold individually under part number H50147. Nominal inside diameter is listed as 2 11/16 inch. Review your operating media and conditions against this specification before installation.
Description -147 BLACK BUNA 50D O-RING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 2.675 inch (67.95 mm)
Actual Outside Diameter 2.881 inch (73.18 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity