H70322 is an AS568-322 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 1.225 in (31.12 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.645 in (41.78 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.
It resists many alcohols, greases and lubricants, and propane and butane. Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or automotive brake fluid are present.
Maintenance and OEM teams specify it across construction equipment, agricultural equipment, and automotive.
Stocked as H70322 and sold individually. Unit weight is approximately 0.0032 g. Check the compound against your process media, pressure and temperature before committing to a design. 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 -322 BLACK BUNA 70D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 1.225 inch (31.12 mm)
Actual Outside Diameter 1.645 inch (41.78 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity