APG stocks the H50246, an AS568-246 black Buna-N (Nitrile) 50 Shore A O-Ring built to an inside diameter of 4.484 in (113.89 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.762 in (120.95 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Buna-N (Nitrile) is valued for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. It resists propane and butane, many alcohols, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or strong acids.
It sees regular use in hydraulic and pneumatic systems, construction equipment, and automotive.
This item is sold individually under part number H50246. Unit weight is approximately 0.0047 g and nominal inside diameter is listed as 4 1/2 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 -246 BLACK BUNA 50D O-RING
uf_description2 0.139" (3.53MM) CS X 4.484" (113.89MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 4.484 inch (113.89 mm)
Actual_OD 4.762 inch (120.95 mm)
ProductCode Description O-Rings - Bulk - Commodity