It is essential to select the right dimensions when choosing O-rings for different applications,
depending on the industry and the requirements of the specific project.
AS size,
which stands for Aerospace Standard, is used in the aerospace industry. This sizing follows
specific standards established for O-rings used in aircraft and spacecraft. AS sizes are highly
accurate and meet stringent quality standards.
BS size,
which stands for British Standard, refers to O-rings that comply with British standard sizes.
This sizing is widely used in the United Kingdom and in some other countries that follow British
standards. BS sizes may slightly differ from AS sizes and have their own specifications and tolerances.