Ordered as H50450, this is an AS568-450 black Buna-N (Nitrile) 50 Shore A O-Ring built to an inside diameter of 10.475 in (266.07 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 11.025 in (280.04 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, low compression set under sustained load. This material stands up to water, propane and butane, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or polar solvents are present.
It sees regular use in fluid power, construction equipment, and hydraulic and pneumatic systems.
Order part number H50450, sold individually. Nominal inside diameter is listed as 10 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to 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 -450 BLACK BUNA 50D O-RING
uf_description2 0.275" (6.99MM) CS X 10.475" (266.07MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 10.475 inch (266.07 mm)
Actual_OD 11.025 inch (280.04 mm)
ProductCode Description O-Rings - Bulk - Commodity