This o-ring is supplied in AS568-920 black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 1.475 in (37.47 mm), a cross section of 0.118 in (3 mm), and an outside diameter of 1.711 in (43.46 mm), catalogued under part number H70MD920. It compresses into its gland to block fluid or gas migration across a joint.
Buna-N (Nitrile) offers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. The material holds up against water, petroleum-based oils, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ketones or strong acids are present.
This o-ring is metal detectable for HACCP and foreign-body control programs. Maintenance and OEM teams specify it across general industrial maintenance, hydraulic and pneumatic systems, and agricultural equipment.
This item is sold individually under part number H70MD920. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Description -920 BLACK BUNA 70D O-RING
Actual Cross Section 0.118 inch (3 mm)
Actual Inside Diameter 1.475 inch (37.47 mm)
Actual Outside Diameter 1.711 inch (43.46 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable