This o-ring is supplied in AS568-280 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 13.984 in (355.19 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 14.262 in (362.25 mm), catalogued under part number H70MD280. It remains the most cost-effective sealing element available for pressurized assemblies.
As a material, Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and low compression set under sustained load. It resists propane and butane, hydraulic fluids, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.
The compound is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include automotive, fluid power, and construction equipment.
Reference part number H70MD280 when ordering; the item is sold individually. Nominal inside diameter is listed as 14 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description -280 BLACK BUNA 70D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 13.984 inch (355.19 mm)
Actual Outside Diameter 14.262 inch (362.25 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable