Crosssection Subsequent to the dimension, the letter "A" is appended to indicate use in aerospace applicationsBritish Standard BS ORings Size Chart Standard British ORings sizes Tolerances vary by use, please see out tolerance pages Thousands of nonstandard sizes are available in stock or can be made within a few weeks typically without tooling fees so no need to settle for aAS568 ORing Size Chart The Global ORing and Seal Size Reference Chart covers the AS568 ORing Sizes published by the Society of Automotive Engineers (SAE), and includes the Extended Sizes in the 400 SeriesDimensional tolerances for all AS568 orings offered by Global ORing and Seal are in accordance with ISO AThe purpose of this chart is to specify the inside
O Ring Grooves
