APG stocks the H90M4X44, a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 44 mm (1.732 in), a cross section of 4 mm (0.157 in), and an outside diameter of 52 mm (2.05 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. It resists greases and lubricants, water, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ozone and direct sunlight or polar solvents call for a different compound.
Common environments for this compound include automotive, construction equipment, and fluid power.
Order part number H90M4X44, sold individually. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description 4MM CS X 44MM ID BLACK BUNA 90D
uf_description2 METRIC O-RING
Actual_OD 52 mm (2.05 inch)
Actual_CS 4 mm (0.157 inch)
Actual_ID 44 mm (1.732 inch)
ProductCode Description O-Rings - Metric - Commodity