H50143 is an AS568-143 black Buna-N (Nitrile) 50 Shore A O-Ring supplied with an inside diameter of 2.425 in (61.6 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.631 in (66.83 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.
As a material, Buna-N (Nitrile) is known for low compression set under sustained load, strong abrasion and tear resistance. The material holds up against water, hydraulic fluids, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).
You will find this material specified across agricultural equipment, construction equipment, and fluid power.
Stocked as H50143 and sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
Description -143 BLACK BUNA 50D O-RING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 2.425 inch (61.6 mm)
Actual Outside Diameter 2.631 inch (66.83 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity