Ordered as H50353, this is an AS568-353 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 4.975 in (126.37 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.395 in (137.03 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, strong abrasion and tear resistance. Expect good resistance to propane and butane, petroleum-based oils, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where polar solvents or ketones are present.
Common environments for this compound include agricultural equipment, construction equipment, and hydraulic and pneumatic systems.
Stocked as H50353 and sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
Description -353 BLACK BUNA 50D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 4.975 inch (126.37 mm)
Actual Outside Diameter 5.395 inch (137.03 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity