APG stocks the H50225, an AS568-225 black Buna-N (Nitrile) 50 Shore A O-Ring supplied with an inside diameter of 1.859 in (47.22 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.137 in (54.28 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. It resists many alcohols, water, and hydraulic fluids. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where polar solvents or ketones are present.
Typical settings include automotive, fluid power, and agricultural equipment.
Order part number H50225, sold individually. Nominal inside diameter is listed as 1 7/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description -225 BLACK BUNA 50D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 1.859 inch (47.22 mm)
Actual Outside Diameter 2.137 inch (54.28 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity