AS568 Standard O-Ring Sizes

    The below diagrams can be used to match a O-ring to get the AS568 Standard O-Ring Size.  The O-ring size is displayed in a 1 inch square box.  Verify the box size to ensure the print is properly sized.

O-Ring Diagram

ID = Inside Diameter 
OD = Outside Diameter
CS = Cross Section   


Size :001

ID = 0.029
OD = 0.109
CS = 0.40 

Size :002

ID = 0.042
OD = 0.142
CS = 0.50 

Size :003

ID = 0.056
OD = 0.176
CS = 0.60 

Size :004

ID = 0.070
OD = 0.210
CS = 0.70 

Size :005

ID = 0.101
OD = 0.241
CS = 0.70 

Size :006

ID = 0.114
OD = 0.254
CS = 0.70 

Size :007

ID = 0.145
OD = 0.285
CS = 0.70 

Size :008

ID = 0.176
OD = 0.316
CS = 0.70 

Size :009

ID = 0.208
OD = 0.348
CS = 0.70 

Size :010

ID = 0.239
OD = 0.379
CS = 0.70 


Sources :

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