are available in standard sizes according to different industry
standards. These sizes include the SAE AS568 Aerospace Size Standard for o-rings (001-475), SAE AS568 Aerospace Size Standard for boss gasket sizes (901 and up), JIS Standard sizes, JASO Standard
sizes, AS871 and British Standard metric o-ring sizes.
general, the inch-based sizes of the AS568 are considered to be
the U.S. standard sizes while metric o-ring sizes are used in the rest of
Problem Solving Products, Inc. sells all AS568 standard o-ring sizes. In addition, have many metric o-rings sizes in stock and can quickly manufacture what you need if we already have a tool for that particular o-ring size. If not, we can still have all metric and non-standard o-ring sizes manufactured although a tooling charge may apply.
a metric o-ring or other non-standard sized o-ring is required then we will need the inside
diameter, outside diameter and width to determine the size.
there will come a day when the metric system will become the sole
measurement system in the U. S. There was a strong movement toward
the sole use of the metric system during the 1970's and 1980's;
however it lost its momentum. Currently a
dual measurement system is used in the U.S.