Part number H50220 is an AS568-220 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 1.359 in (34.52 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.637 in (41.58 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
The compound resists water, hydraulic fluids, and petroleum-based oils. Buna-N (Nitrile) is widely chosen for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or ketones are present.
Typical settings include agricultural equipment, hydraulic and pneumatic systems, and automotive.
Order part number H50220, sold individually. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description -220 BLACK BUNA 50D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 1.359 inch (34.52 mm)
Actual Outside Diameter 1.637 inch (41.58 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity