BS 1806
BS 1806 is a British imperial O-ring size reference that includes sizes in several cross-section groups and additional intermediate sizes.
What this standard covers
BS 1806 is a British imperial O-ring size reference that includes sizes in several cross-section groups and additional intermediate sizes.
Using it for cross-reference
Use the standard's actual designation and nominal dimensions when available. Do not infer a guaranteed equivalent solely from millimetre rounding.
Next tool
Our O-Ring Cross Reference currently performs dimensional matching against the AS568 dataset. Standard-to-standard mappings are being added only when the source data can be verified.
Primary / reference source
Open source / standard reference
The official standards themselves may require purchase or licensed access. This page summarizes publicly available scope/status information and does not reproduce proprietary standards text.