This o-ring is supplied in AS568-452 black Buna-N (Nitrile) 70 Shore A with an inside diameter of 11.475 in (291.47 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 12.025 in (305.44 mm), catalogued under part number H70MD452. It compresses into its gland to block fluid or gas migration across a joint.
It resists water, propane and butane, and hydraulic fluids. Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ketones or automotive brake fluid.
The compound is metal detectable for HACCP and foreign-body control programs. It sees regular use in automotive, construction equipment, and agricultural equipment.
H70MD452 ships individually. Nominal inside diameter is listed as 11 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description -452 BLACK BUNA 70D O-RING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 11.475 inch (291.47 mm)
Actual Outside Diameter 12.025 inch (305.44 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable